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P OTATO N U T R I T I O N   HANDBOOK
Ta b l e o f C o n t e n t s                                                I n t r o d u cti o n


Introduction: Peel Back the Truth	                                  1       The United States Potato Board (USPB) was established in 1971 by a group of
                                                                            potato growers to promote the many benefits of eating potatoes. The USPB
Potato Nutrition Facts	                                            2
Vitamin C, Potassium and Gluten-Free 	                             2        was one of the first commodity groups to develop and use an FDA-approved
Vitamin B6, Fiber and Resistant Starch	                            4        nutrition label and has long since promoted positive nutrition messages. As a
Antioxidants	                                                      6
                                                                            result of these efforts, consumer attitudes toward potatoes remained mostly
Glycemic Index	                                                    8
Satiety and Weight Management	                                     11       positive for over 30 years. Then, the low-carbohydrate diet craze swept the
Type 2 Diabetes	                                                  14        nation beginning in the early 2000s and took a toll on the relationship between
Potatoes in the American Diet	                                    15
                                                                            America and its beloved potato, as indicated by a slight, yet noticeable,
Potatoes 101	                                                      17       decrease in potato consumption. This caused the potato industry to ramp up its
History of the Potato	                                             18
                                                                            consumer marketing efforts, focusing on dispelling the myth that potatoes are
How to Buy and Store Potatoes	                                     19
Fresh Potato Types	                                               20        fattening and educating the public about the inherent goodness of America’s
                                                                            Favorite Vegetable.
Cooking With Potatoes	                                            23
The Basics	                                                       24
How to Bake a Potato	                                             25        In 2004, the USPB began a formal Nutrition             This handbook is a compilation of all-things-
Perfect Mashed Potatoes and How to Bake Fries	                    26        Science Program which compiled key potato              potato as it relates to nutrition research and more.
Potato Salad Possibilities and Grilling With Potatoes	            27        research studies and began funding university          Beginning with potato nutrition facts and ending

Restaurant Chefs Love Potatoes	                                   28        research projects to protect the reputation of the     with a monthly calendar of ideas for news features,
                                                                            potato. The USPB positions itself at the forefront     newsletters and blog posts, these pages are
	
                                                                            of potato nutrition research and monitors research     brimming with historical potato facts, techniques
Potato Story Ideas	                                               31
                                                                            and trends in the U.S. and overseas that could         for cooking the potato in today’s “30-minute meal”
A Month-By-Month Calendar of Ideas to Put Potatoes in the News	   32
                                                                            impact potato consumption in America.                  mentality, and healthy recipes to keep the potato
                                                                                                                                   naturally nutritious and delicious.
Healthy Potato Recipes	                                           35        In 2007, the USPB adopted an industry-wide
Recipes and Photos	                                               36        signature, “Potatoes…Goodness Unearthed®,” to
                                                                            promote the nutritional benefits of the potato. It’s
                                                                            the first unified endeavor by the entire U.S. potato
Research Abstracts	                                               43
                                                                            industry to clearly identify the U.S. potato as a
Summary of USPB-Funded and Non-Funded Research	                   44
                                                                            nutrition powerhouse.

References	                                                       55

USPB Contact Information	                                         59                                                               For more information, visit
                                                                                                                                   www.potatogoodness.com.


                                                                        1
P e e l B ac k t h e T r u t h :
P otato N u t r iti o n Fact s                                                                                                              provide one of the most concentrated and               potassium intake, the subjects on the LNAHK diet
                                                                                                                                            affordable sources of potassium (Table 2). —           and OD diets were given a list of potassium rich
                                                                                                                                            significantly more than those foods commonly           foods and instructed to eat a potato a day. The
It’s a surprise for many to discover                                         Gluten-Free
                                                                                                                                            associated with being high in potassium                results indicated that both the LNAHK and OD
that one medium potato (5.3 oz)                                              According to the 2011 USPB Attitudes & Usage
                                                                                                                                            (e.g., bananas, oranges, mushrooms, etc.)              produced decreases in blood pressure (compared
                                                                             Study, only 19% of Americans rate potatoes as
with the skin contains 45 percent of                                                                                                        (Drewnowski et al. 2011). Research suggests            to the HC diet); however the decrease was
                                                                             excellent for being gluten-free. In fact, potatoes
                                                                                                                                            that diets rich in potassium and low in sodium         greatest in the LNAHK diet. With the speculation
the daily value for vitamin C; as much                                       are 100% gluten-free! According to the National
                                                                                                                                            reduce the risk of hypertension and stroke             that the blood pressure lowering effects of the
or more potassium (620 mg) than                                              Foundation for Celiac Awareness, an estimated
                                                                                                                                            (Appel et al. 1997, FDA, Food & Nutrition Board        LNAHK and OD diets were due to an increase in
either bananas, spinach, or broccoli;                                        3 million Americans suffer from side effects
                                                                                                                                            2004). Accumulating evidence also suggests             dietary potassium as a direct result of including a
                                                                             associated with eating foods that contain gluten.
10 percent of the daily value of B6;                                                                                                        that increasing dietary potassium can negate           daily potato dish, Nowson and colleagues recently
                                                                             To make it easier for those who suffer from this
and trace amounts of thiamin,                                                                                                               some of the negative effects of dietary sodium         re-examined the data. The results confirmed that
                                                                             disease to find delicious, gluten-free recipes, the
                                                                                                                                            on blood pressure (Geleijnse et al. 2003),             there was an inverse relationship between potato
riboflavin, folate, magnesium,                                               USPB has created a gluten-free recipe collection
                                                                                                                                            and reducing sodium along with increasing              consumption and blood pressure. Specifically, it
phosphorous, iron, and zinc — all for                                        on their website www.potatogoodness.com, which
                                                                                                                                            potassium provides greater heart disease               was demonstrated that a 100-g/d higher intake of
                                                                             includes more than 80 gluten-free recipes from
only 110 calories and no fat (Table 1).                                                                                                     protection than intervention alone (Cook et al.        potatoes (an average potato is approx. 150 grams)
                                                                             several ethnic cuisines, many of which can be
                                                                                                                                            2009, Nowson et al. 2004).                             was associated with a 2.6 mm Hg lower diastolic
                                                                             prepared in 30 minutes or less.
Table 1: FDA Data for a 5.3 oz Potato with the Skin*                                                                                                                                               blood pressure (Nowson et al. 2008).
                                                                                                                                            Table 2: Potassium Content of Selected “High”
                                                                                                                                            Potassium Foods*
 Calories (kcal)                         110           % Daily Value         Vitamin C
 Fat (g)                                  0                        –         Potatoes provide 27 mg of vitamin C (45 percent
                                                                                                                                             Food Source                          Potassium (mg)               Potatoes Lead Potassium
 Cholesterol (mg)                         0                        –         of the current daily value), which can contribute
                                                                                                                                             Potato (1, 5.3 oz)                        620
                                                                                                                                                                                                         .................. Produce Picks ..................
 Sodium (mg)                              0                        –         to total daily requirements. This water-soluble
                                                                                                                                             Broccoli (1 med stalk)                    460                  The recommended intake for potassium was
 Potassium (mg)                         620                   18%            vitamin acts as an antioxidant, stabilizing or                                                                                 recently increased to 4,700 mg from 3,500
                                                                                                                                             Banana (1 med)                            450                   per day. Potatoes rank highest among the
 Vitamin C (mg)                          27                   45%            eliminating free radicals, thus helping to prevent                                                                                 20 top-selling fruits and vegetables
                                                                                                                                             Sweet Potato (1 med)                      440
 Vitamin B6 (mg)                        0.2                   10%            cellular damage. Vitamin C also aids in collagen                                                                                             Potassium content per serving
                                                                                                                                             Tomato (1 med)                            340
 Fiber (g)                                2                    8%            production, a process that helps to maintain
                                                                                                                                             Mushrooms (5 med)                         300
                                                                             healthy gums and is important in healing wounds.
                                                                                                                                             Orange (1 med)                            250
*It should be noted that the FDA label represents a composite of varietals   Finally, vitamin C assists with the absorption of
                                                                                                                                             Cantaloupe (1/4 med)                      240                         Potatoes
(“market-basket approach”) based on typical U.S. consumption patterns        iron and may help support the body’s immune                                                                                           620 mg
(i.e., 70 percent russet, 18 percent white, and 12 percent red).                                                                             Grapefruit (1/2 med)                      160
                                                                             system (Gropper 2008). Although potatoes do                                                                                                              Broccoli
                                                                                                                                                                                                                                      460 mg
                                                                                                                                                                                                                                                 Bananas
                                                                             not rival the vitamin C content of citrus fruits and           *www.fda.gov/food/labelingnutrition
                                                                                                                                                                                                                                                 450 mg
Based on the FDA label (Table 1), the following
                                                                             peppers, they do contribute significantly to daily
claims can be made for the potato:                                                                                                                                                                                                                         Tomatoes
                                                                             vitamin C requirements. In fact, data from the                 Given their high potassium content, potatoes may                                                                340 mg

	 • An excellent source (> 20 percent of the DV)                             most recent Continuing Survey of Food Intakes by               contribute to a heart healthy diet. Nowson et al.
		 of vitamin C                                                              Individuals (1994-1996) indicates that potatoes                (2004) examined the effect on blood pressure of          Source: United States Potato Board



	 • A good source (> 10 percent of the DV)                                   rank in the top 5 of dietary sources of vitamin C              two different self-selected diets: (1) a low-sodium,
		 of potassium                                                                                                                                                                                    The health benefits of potassium go beyond
                                                                             for Americans (Cotton et al. 2004).                            high-potassium diet rich in fruit and vegetables
	 • A good source (> 10 percent of the DV)                                                                                                                                                         cardiovascular health. Research indicates that
                                                                                                                                            (LNAHK) and (2) a high-calcium diet rich in low-
		 of vitamin B6                                                                                                                                                                                   diets high in potassium-rich fruits and vegetables
                                                                             Potassium                                                      fat dairy foods (HC) with a (3) moderate-sodium,
	 • Low (< 140 mg/serving) in sodium                                                                                                                                                               may help maintain lean body mass and bone
                                                                             It is estimated that less than 3% of Americans                 high-potassium, high-calcium DASH-type diet
		 and cholesterol                                                                                                                                                                                 mineral density as we age (Dawson-Hughes et al.
                                                                             are meeting the current adequate intake (AI)                   high in fruits, vegetables and low-fat dairy foods
	 • Fat-free (< 0.5 g fat/serving)                                                                                                                                                                 2008, Tucker et al. 1999).
                                                                             for potassium (4700 mg/d) (USDA). Potatoes                     (OD) for four weeks. In order to achieve a higher


                                                                                                                                    2   3
Vitamin B6                                            Resistant Starch                                                 reductions in blood lipid levels, increases in         Table 3: Resistant Starch Content of Various Foods*

Potatoes are a good source of vitamin B6, a water     Resistant starch is the starch that is ‘resistant’               satiety and potential uses in weight management
                                                                                                                                                                               Food                             RS (g/100g food)
soluble vitamin that is often low in the diets of     to enzymatic digestion in the small intestine.                   (Higgins 2004, Bodinham et al. 2010).
certain groups of women (DRIs 1997). Vitamin B6       Resistant starch is found naturally in foods such as                                                                     Puffed Wheat                             6.2

plays important roles in carbohydrate and protein     legumes, bananas (especially under-ripe, slightly                In fact, the potential health benefits are so           White Beans (cooked)                     4.2
metabolism. It helps the body make nonessential       green bananas), potatoes, and some unprocessed                   promising that the Joint Food and Agricultural
                                                                                                                                                                               Banana (raw)                            4.0
amino acids needed to make various body               whole grains. Natural resistant starch is insoluble,             Organization of the United Nations/World Health
proteins. It is also a cofactor for several enzymes   fermented in the large intestine and a prebiotic                 Organization Expert Consultation on Human               Potato Chips                             3.5
involved in energy metabolism, and it is required     fiber (i.e., it may stimulate the growth of beneficial           Nutrition concluded that resistant starch is “…one
                                                                                                                                                                               Lentils (cooked)                         3.4
for the synthesis of hemoglobin – an essential        bacteria in the colon). Other types of resistant                 of the major developments in our understanding
component of red blood cells (DRIs 1997).             starch may be soluble or insoluble, and may or                   of the importance of carbohydrates for health in        Corn Flakes                              3.2

                                                      may not have prebiotic properties (Higgins 2004).                the past twenty years.” (FAO 1998)                      Potato (cooked & cooled)                 3.2
Fiber
                                                                                                                       The amount of resistant starch found in potatoes is     Rye Bread                                3.2
One medium potato with the skin contributes           The physiological effects and potential health
                                                                                                                       highly dependent upon processing and preparation
two grams of fiber or eight percent of the daily      benefits of resistant starch have been studied in                                                                        Potato (fried)                           2.8
                                                                                                                       methods. For example, cooking and then cooling
value. Dietary fiber is a complex carbohydrate        animals and humans for over 30 years (Murphy
                                                                                                                       potatoes leads to nearly a two-fold increase in         Chickpeas (cooked)                       2.6
and is the part of the plant material that cannot     et al. 2008). Resistant starch appears to exert
                                                                                                                       resistant starch—Table 3 (Englyst et al. 1992,          Peas                                     1.9
be digested and absorbed in the bloodstream.          beneficial effects within the colon as well as
                                                                                                                       Murphy et al. 2008). Even processed potatoes (e.g.,
Dietary fiber has been shown to have numerous         body wide. Health benefits in the colon include                                                                          Potato (boiled)                          1.3
                                                                                                                       potato flakes) appear to retain a significant amount
health benefits, including improving blood lipid      enhanced laxation, extensive fermentation and
                                                                                                                       of resistant starch with the potential to confer        Wheat Bread                              1.2
levels, regulating blood glucose, and increasing      the production of important short chain fatty
                                                                                                                       health benefits.
satiety, which may help with weight loss (Food        acids and increased synthesis of a variety of                                                                            Potato (baked)                           1.0
and Nutrition Board 2002).                            “good” bacteria (Murphy et al. 2008, Cummings
                                                      et al. 1996, Nofrarias et al. 2007) both of which                                                                       * Adapted from Murphy 2008

                                                      are believed to protect the colon from harmful
                                                      microorganisms and even cancer (Hylla et al.
                                                      1998). Systemic effects include improvements
                                                      in glucose tolerance and insulin sensitivity,




                                                                                                               4   5
CAROTENOIDS                                                      ANTHOCYANINS
Antioxidants                                              A number of scientists have developed specific                  Comprise a large group of compounds produced by plants          Are a class of plant pigments that can be classified
                                                                                                                                                                                          chemically as both flavonoids and phenolics
In addition to vitamins and minerals, potatoes also       research programs to examine the antioxidant
contain an assortment of phytochemicals with              content of different varieties of potatoes with
antioxidant potential, most notably carotenoids           the ultimate goal of developing new potato                      Imparts yellow-to-red hues to various plants, including         Widely distributed among flowers, fruits, and vegetables
                                                                                                                          fruits, tubers and roots                                        and contribute to every color but green (Hou 2003)
and anthocyanins (Brown et al. 2001, 2004).               varieties that maximize antioxidant potential.
Anthocyanins are found in the greatest quantities         Dr. Cecil Stushnoff and his team at Colorado
in purple and red potatoes while carotenoids are          State University have examined nearly 100                       Play a function in plants as accessory pigments,                Play several major roles in plants, including attracting
                                                                                                                          photosynthesis and protect against photosensitization in        insects for pollination, acting as a UV screen to protect
found largely in yellow and red potatoes, although        different selections and varieties of potatoes for              plants and animals. In humans, carotenoids are thought          the plant’s DNA from damage by sunlight, and acting as
                                                                                                                          to have a variety of function including antioxidant activity,   feeding deterrents
small amounts are also found in white potatoes            antioxidant content and free radical scavenging                 immunoenhancement and perhaps protection against some
                                                          capacity and have found that pigmented potatoes                 forms of cancer (DRIs 2000)
(Brown et al. 2004).
                                                          contain a variety of substances with antioxidant
Wu and colleagues (2004a) examined total                  potential (Stushnoff et al. 2007). Potato cultivars
antioxidant capacity (TAC) in more than 100               with particularly high phenolic contents include:
different foods, including fruits, vegetables, nuts,
                                                          	 •Purple Majesty
                                                                                                                        The effects of pigmented potato consumption on                      Does cooking potatoes impact
dried fruits, spices, cereals, and other foods.                                                                         biomarkers of oxidative stress, inflammation and
In addition, the researchers measured total
                                                          		 (recently released purple-skinned variety)                                                                                     antioxidant content?
                                                                                                                        immune response were recently studied in a sample
                                                          	 •Mountain Rose
phenolic content of these foods to evaluate their                                                                       of healthy adult males who received daily doses                     What is the impact of cooking and other forms
                                                          		 (not yet released red-skinned variety)
contribution to total antioxidant capacity. Out                                                                         (150 grams) of either white, yellow or purple-fleshed               of processing on the phenolic content and
                                                          	 •Rio Grande
of the 42 vegetables that were tested, beans              		(not widely available russet variety)                       potatoes daily (Kaspar 2011). The results indicated                 antioxidant activity of potato varieties? There
(including small red, kidney, and pinto) and                                                                            that consuming pigmented potatoes can reduce                        is no clear-cut answer as the current data are
artichokes ranked highest in total antioxidant            Researchers are also focusing on breeding species             inflammation and DNA damage as well as modulate                     conflicting. Results from Dr. Brown’s lab indicate
capacity, while russet potatoes ranked fifth,             of potatoes that have improved antioxidant                    immune cell phenotype in healthy adult males.                       that boiling increases the extractable total
coming in ahead of vegetables that are more               capacity and have successfully developed potato                                                                                   carotenoids and the accompanying antioxidant
commonly known for their antioxidant potential,           tubers with increased levels of flavonoids and                Dr. Roy Navarre and researchers from Washington
                                                                                                                                                                                            values (Brown 2007). On the other hand, data
such as broccoli, cabbage, and tomatoes.                  carotinoids (Lukaszewicz et al. 2004, Brown                   State University recently began using a technique
                                                                                                                                                                                            from Dr. Miller’s lab indicates that boiling is the
                                                          2004, Navarre 2007).                                          known as “metabolic profiling.” They examine
                                                                                                                                                                                            only cooking method that severely negatively
                                                                                                                        genetic variations in potatoes and then use
   Potato Nutrition:                                      The potential role of potato antioxidants in                  this information to maximize their nutritional
   More than skin deep                                     immune function and disease prevention have                  potential. In his lab, metabolic profiling is
   A common misconception is                                 also been studied. For example, Reddivari et               being used to screen potatoes for genotypes
   that all of the potato’s nutrients
                                                              al. (2007) examined the effects of a purple               with elevated amounts of vitamins and
   are found in the skin. While the
                                                              potato anthocyanin fraction on prostate                   phytonutrients. Substantial differences in
   skin does contain approximately
                                                              cancer cell proliferation and apoptosis                   phytonutrients among different genotypes
   half of the total dietary fiber, the
   majority (> 50 percent) of the
                                                              (i.e., cancer cell death) in vitro. The results           were observed for some phenolic compounds,
   nutrients are found within the potato                     indicated that cancer cell proliferation was               including flavonol, differing in concentration
   itself. As is true for most vegetables,                  decreased by the anthocyanin fraction, and                  by well more than tenfold. More modest
   cooking does impact the bioavailability                apoptosis was increased. Current studies are                  differences were found in folate, with about
   of certain nutrients, particularly water-soluble       focusing on identifying the individual components             a threefold difference between high and low
   vitamins and minerals, and nutrient loss is greatest
                                                          of the anthocyanin fraction responsible for the               folate genotypes. Comparisons have also been
   when cooking involves water (boiling) and/or
                                                          induction of apoptosis in prostate cancer cells and           made between wild species and cultivars,
   extended periods of time (baking). To maintain the
                                                          on developing potato cultivars that over-express              and marked differences were found in a
   most nutrition in a cooked potato, steaming and
                                                          these bioactive compounds.                                    variety of compounds, including glycoalkaloid
   microwaving are best.
                                                                                                                        composition (Navarre et al. 2007).

                                                                                                                6   7
impacts antioxidant content. Microwaving and                determination of GI, which severely limits the simple             affect its GI. Decreasing the pH of a starch (e.g.,
baking appear to cause minimal destruction/                 classification of a given food as high, medium or                 by adding acid) can lower the GI; thus, adding
reduction in antioxidant content. Dr. Miller                low on the GI, as well as the application of the GI for           vinegar to potatoes (such as when making
hypothesizes that the boiling causes a loss of              the purpose of food selection (Franz 2006). First                 potato salad) will lower the GI of the potatoes.
the water-soluble antioxidants in the water. Wu             and foremost, it must be emphasized that the GI is                Similarly, acetylation or the addition of beta-
and colleagues (2004b) found that cooking had               not an inherent property of a food but, rather, the               cyclodestrin has been shown to decrease the GI
a variable effect on the hydrophilic antioxidant            metabolic response of an individual to a food (Pi-                of potato starch (Raben et al. 1997).
capacity of the four different vegetables tested            Sunyer 2002). Thus, the GI of a carbohydrate-rich
                                                                                                                              Preparation: Cooking has been shown to exert
(russet potato, broccoli, carrots and tomato).              food can vary greatly depending on a number of
                                                                                                                              a differential effect on GI of a carbohydrate-
Specifically, potatoes and tomatoes had significant         factors, including:
                                                                                                                              rich food, particularly one that is high in starch.
increases in antioxidant content after cooking,
                                                            Variety: Different varieties of a given                           For example, a recent study by Fernandes et al.
while carrots had a significant decrease, and
                                                            carbohydrate-rich food (e.g., short-grain vs.                     (2005) examined the effect of cooking on the
broccoli was unchanged.
                                                            long-grain rice, linguini pasta vs. rotini pasta,                 GI of potatoes prepared in a variety of different
                                                            red potatoes vs. russet potatoes) can produce                     ways including mashed; baked; reheated; boiled;
Glycemic Index
                                                            significantly different GIs. According to the most                boiled and cooled; and fried. The results indicated
If low carbohydrate was the diet trend at the start                                                                                                                                   Between-Subject Variability: Research clearly
                                                            recently published international table of GI values               that the GI values of potatoes varied significantly
of the decade, then low glycemic index (GI) has                                                                                                                                       shows that individuals can vary significantly
                                                            (Atkinson et al. 2008), the GIs for potato varieties              depending on both the variety and cooking
certainly been the trend to round it out. The GI is                                                                                                                                   in their glycemic responses to the same food
                                                            range from a low of 56 for a boiled Pontiac potato                method used, ranging from intermediate (boiled
defined as “the incremental area under the blood                                                                                                                                      (Wolever 2003). Nonetheless, in laboratory
                                                            from Australia to a high of 111 for a baked U.S.                  red potatoes consumed cold: 56) to moderately
glucose response curve of 50 grams available                                                                                                                                          studies, this source of variation is reduced to the
                                                            Russet Burbank.                                                   high (roasted white potatoes: 73; baked russet
carbohydrate portion of a test food relative to 50                                                                                                                                    point where it is no longer statistically significant
                                                                                                                              potatoes: 72). Similarly, Kinnear et al. (2011)
grams of a reference food (e.g., glucose or white                                                                                                                                     by expressing an individual’s glycemic response to
                                                            Origin: Ironically, even for presumably the same
                                                                                                                              investigated the effects of cooking and cooling
bread)” (Jenkins et al. 1981). Potatoes have been                                                                                                                                     the food of interest relative to that of a reference
                                                            variety, the GI value can vary widely depending
                                                                                                                              on the GI of four novel potato varieties and found
unfairly criticized for their ranking on the GI. In fact,                                                                                                                             food (e.g. white bread or glucose). For example,
                                                            on where it was grown. For example, russet
                                                                                                                              significant variability in the effects. Specifically,
there are a number of complexities in the measure                                                                                                                                     Wolever and colleagues (1991) examined the
                                                            potatoes grown in Australia have a GI ranging
                                                                                                                              cooking and cooling reduced the GI of two potato
and methodological weaknesses inherent in the                                                                                                                                         glycemic responses (AUC) and GI (i.e., the AUC
                                                            from 87-101, placing them in the high category,
                                                                                                                              varieties by 40-50%, while it produced only a
                                                            whereas russets grown in the U.S. and Canada                                                                              of the test food expressed relative to white
                                                                                                                              8-10% reduction in the other two varieties.
                                                            have GIs ranging from 56-77, placing them in the                                                                          bread) of three different foods (white bread, rice,
                                                            more moderate category (Foster-Powell et al.                                                                              and spaghetti) in 12 subjects with diabetes. The
                                                            2009; Fernandes 2005).                                                                                                    average coefficient of variation (a representation
                                                                                                                                                                                      of the variability in responses between subjects)
                                                            Processing: Grinding, rolling, pressing, mashing,                                                                         for the AUC (for the same food) was 45 percent,
                                                            and even thoroughly chewing a starch-rich                                                                                 whereas for the GI it was only 10 percent. While
                                                             carbohydrate will disrupt the amylase and/                                                                               mathematically correcting for differences in
                                                             or amylopectin molecules, making them more                                                                               glycemic responses makes for a nice, consistent
                                                            available for hydrolysis and thereby increasing                                                                           GI, it is artificial and masks a very important
                                                             the GI (Collier & O’Dea 1982, Pi-Sunyer 2002,                                                                            and practical consideration — individuals differ
                                                             Wolever et al. 2001). For example, Wolever                                                                               significantly in their blood glucose responses to
                                                            and colleagues showed that the GI of a one-                                                                               the same food.
                                                            inch cube of potato could increase by almost 25
                                                            percent simply by mashing the cube. Chemically
                                                            modifying a carbohydrate-rich food can also


                                                                                                                      8   9
Within-Subject Variability: Not only                                                                                                                       Satiety and Weight Management
do blood glucose responses to similar
                                                                                                                                                           Given the ever increasing prevalence of obesity in the U.S.
foods differ between individuals,
                                                                                                                                                             (68 percent of Americans are overweight or obese) (Flegal
they can vary significantly in the
same person on different occasions.                                                                                                                            2010), it is not surprising that weight management is top
In fact, the within-subject variation                                                                                                                           of mind among consumers and health professionals
can sometimes be greater than the
                                                                                                                                                                alike. One of the most highly researched factors believed
between-subject variation. Wolever
et al. (1985) showed that for repeated
                                                                                                                                                                to impact weight management is satiety. Satiety is
tests of 50 grams of carbohydrate                                                                                                                               generally defined as the physiological and psychological
from glucose or bread, the coefficient                                                                                                                          experience of “fullness” that comes after eating and/
of variation of AUC was approximately
                                                                                                                                                                or drinking. A number of factors have been shown to
15 percent in subjects with Type 2
Diabetes, 23-25 percent in nondiabetic                                                                                                                         influence the experience of satiety, including gastric
subjects, and 30 percent in subjects                                                                                                                             distention, elevations in blood glucose, and alterations
with Type 1 Diabetes. Similarly, Vega-                                                                                                                            in circulating hormones (e.g., increased insulin and
Lopez et al. (2006) examined the
                                                                                                                                                                  cholecystokinin and decreased glucagon). The GI of a
inter-individual variability and intra-
individual reproducibility of GI values                                                                                                                           food has also been hypothesized to influence satiety,
for commercial white bread among 23 healthy          Time of Day: The time of day during which                                                                   despite a paucity of valid research to support the
adults (aged 20-70 years) and found that the         glycemic response is measured may impact not
                                                                                                                                                                connection. Due to potatoes’ supposed high GI, they
inter-individual coefficient of variation (CV) was   only the absolute glycemic response (i.e., the
                                                     AUC) but also the relative glycemic response (i.e.,                                                       have been accused of not being satiating and, thus, have
17.8 percent, while the intra-individual CV was
42.8 percent. In a study recently published in       the GI) (Gannon et al. 1998; Wolever 1996). For                                                         been pegged as fattening. However, available research does
the British Journal of Nutrition, Williams (2008)    example, Wolever and Bolognesi (1996) compared                                                        not support this contention.
examined the reliability of the GI among four        the glycemic responses to two different breakfast
different foods (white bread, glucose, chickpeas     cereals under two conditions: after a 12-hour
                                                                                                                       A frequently cited study by Holt and colleagues       white bread and multiplying by 100. The results
and mashed potatoes) using the intra-class           fast and at midday, four hours after consuming
                                                                                                                       (1995) examined the satiating effects of 38           indicated that there were significant differences
coefficient (ICC), a measure having values           a standard breakfast. The AUCs at midday were
                                                                                                                       commonly eaten foods grouped into six different       in satiety scores not only between but also within
between zero and one, with values closer to one      significantly less than those after the 12-hour fast,
                                                                                                                       categories (fruits, bakery products, cereals, snack   food groups. The food that scored highest on the
indicating a better reliability and values closer    despite the fact that the subjects consumed the
                                                                                                                       foods, protein-rich foods, and carbohydrate-rich      satiety index was, in fact, boiled potatoes, with a
to zero indicating poor reliability. The ICC for     exact same foods. More specifically, the mean
                                                                                                                       foods). Subjects consumed 240 kcal (1,000 kj)         score seven times greater than croissants, which
white bread, glucose, and chickpeas were 0.50,       AUC response to the high-fiber cereal was 50
                                                                                                                       portions of each food item, and their feelings of     had the lowest SI score. The authors also found no
0.49, and 0.28, respectively, while the ICC for      percent lower than that of the low-fiber cereal
                                                                                                                       hunger/satiety were assessed every 15 minutes for     significant relationships between satiety, plasma
mashed potatoes was significantly lower at           after the 12-hour fast, while this difference shrank
                                                                                                                       a total of 120 minutes using an equilateral seven-    glucose, or glycemic responses among the 38
0.02, indicating a very poor repeatability. It       to just 10 percent at midday.
                                                                                                                       point rating scale that ranged from “extremely        test foods. However, a negative correlation was
bears noting that these studies were all done in
                                                     For the GI to be considered a useful dietary planning             hungry” to “extremely full.” The subjects were then   found between insulin responses and ad libitum
a laboratory under highly controlled conditions
                                                     tool, it must have a predictable effect on blood                  allowed to eat ad libitum from a standard range       food intake at 120 minutes, which suggests that
(i.e., using 50 grams of a single food at the same
                                                     glucose; it must not only be valid but reliable. As               of foods and drinks. A Satiety Index (SI) score       test foods producing a higher insulin response
time of day, etc.). The variation would likely be
                                                     the research described above documents, for many                  was calculated for each food by dividing the area     were associated with less food intake and thus,
much greater under less controlled or more “real
                                                     foods, this is clearly not the case.                              under the satiety response curve (AUC) for the        indirectly, greater satiety.
life” conditions.
                                                                                                                       given food by the group mean satiety AUC for

                                                                                                             10   11
The Holt et al. (1995) study has been criticized                                                                        The twelve week study was conducted in three          differences between the low-GL and high-GL diet
for not controlling for macronutrient and water                                                                         phases. Phase 1 consisted of a seven-week             groups in terms of body fat percentage, hunger,
content of the test foods (i.e., not selecting foods                                                                    baseline period during which subjects were            satiety, or satisfaction with the amount and type
with similar amounts of protein, fat, fiber and water                                                                   instructed to maintain a stable weight and            of foods provided.
content). It has been argued that these factors may                                                                     continue eating their usual diet so as to assess
                                                                                                                                                                              Potatoes have been unjustly singled out as a food
have overshadowed the effect of the GI on satiety.                                                                      baseline energy requirements (using a technique
                                                                                                                                                                              to avoid when attempting to manage body weight
In an attempt to address this methodological                                                                            known as “doubly labeled water,” which is
                                                                                                                                                                              due to their supposedly high GI and GL. A study
shortcoming, Dr. Allan Geliebter and colleagues                                                                         considered the “gold standard” in assessing free-
                                                                                                                                                                              presented at the 2010 Obesity Society meeting
(2008) investigated the satiety of common                                                                               living energy expenditure). Following Phase 1,
                                                                                                                                                                              assessed the role of GI and potatoes in weight
carbohydrate-rich side dishes with varying GIs.                                                                         subjects were randomly assigned to either a high-
                                                                                                                                                                              loss (Randolph, et al. 2010). In a 12-week, 3-arm,
Twelve subjects consumed five test meals with                                                                           or low-GL calorie-restricted diet for 24 weeks.
                                                                                                                                                                              randomized control trial, 86 overweight men and
similar calorie and macronutrient contents (baked
                                                                                                                        All food was provided to the subjects at              women were randomly assigned to one of three
potato, mashed potato, pasta, brown rice, white
                                                                                                                        70 percent of individual baseline weight-             dietary interventions: (1) low GI, calorie reduced
bread) in randomized order followed by an ad
                                                                                                                        maintenance energy requirements (i.e., a 30           diet (500 kcal/d); (2) high GI, calorie reduced
libitum lunch meal two hours later. Appetite ratings    Indeed, a number of recent studies have failed
                                                                                                                        percent calorie reduction). The third and final       diet (500 kcal/d); (3) control group (counseled
were taken prior to the test meal and at 0, 15, 30,     to find a weight loss advantage from low
                                                                                                                        phase of the study consisted of a 24-week             to follow basic dietary guidance including the
60, 90, and 120 minutes. Subjects reported a lower      GI diets. (Aston et al. 2008, Das et al. 2007,
                                                                                                                        calorie-restricted period, during which subjects      Dietary Guidelines for Americans and the Food
desire to eat following the potato meals compared       Randolph et al. 2010, 2011). For example, Aston
                                                                                                                        were instructed to follow the dietary patterns        Guide Pyramid). All three groups were instructed
with the pasta meal. Similarly, at 120 minutes,         and colleagues (2008) examined the effect of
                                                                                                                        they had in Phase 2 but were no longer provided       to consume five-to-seven servings of potatoes
the subjects reported being able to eat less food       diets differing in GI on satiety and weight loss in
                                                                                                                        with the foods (i.e., “self-selected food” period).   per week and were provided with a variety of
following the potato meal compared with the             overweight women (n=19) over a 12-week period.
                                                                                                                        The results indicated that both groups reduced        recipes for potato dishes. Modest weight loss was
brown rice meal. Nonetheless, despite differences       Lower or higher GI versions of key carbohydrate-
                                                                                                                        their energy intake during the calorie-restriction    observed in all three groups (~2% of initial body
in some of the appetite ratings, total energy           rich foods (breads, breakfast cereals, rice and
                                                                                                                        periods, although neither achieved the 30 percent     weight) with no significant difference in weight
intake at the subsequent lunch meal did not differ      pasta/potatoes) were provided to subjects to
                                                                                                                        reduction prescribed, and adherence decreased         loss between the groups.
between the test meals and was not correlated           be incorporated into habitual diets in ad libitum
                                                                                                                        with time. Both groups lost weight (approximately
with fullness. Subjective experience of fullness was    quantities. The results indicated no differences in
                                                        energy intake, body weight, or body composition
                                                                                                                        8 percent of initial body weight), and there was      The results of these studies clearly
not significantly correlated to GI.
                                                                                                                        no significant difference in weight loss between
                                                        between treatments. On laboratory investigation                                                                       show what nutrition professionals
From an obesity perspective, it is important to                                                                         the groups. In addition, there were no significant
                                                        days, there were no differences in subjective
determine if differences in short-term satiety as
                                                                                                                                                                              have always known: when it comes to
                                                        ratings of hunger or fullness, or in energy intake
a result of different GIs actually have an impact       at the snack or lunch meal.                                                                                           weight loss it is calories that count—
on body weight regulation. Unfortunately, much
                                                                                                                                                                              i.e., if you consume more calories
of the currently existing research examining            The effects of calorie-restricted diets (30 percent
the impact of GI on weight loss is hampered by          calorie reduction) differing in GL on body weight                                                                     than you expend you will gain weight.
methodological shortcomings, including small            and body fat losses was examined by Das et                                                                            Conversely, if you consume fewer
sample sizes, inadequate controls, and insufficient     al. (2007). Subjects included overweight but
                                                        otherwise healthy men and women (n-34) who
                                                                                                                                                                              calories than you expend, you will
durations. Nonetheless, after a critical examination
of the available data, the 2010 Dietary Guidelines      were part of a larger, multicenter trial known as                                                                     lose weight.
Advisory Committee concluded that, “Strong and          “CALERIE” (Comprehensive Assessment of the
consistent evidence shows that glycemic index           Long-term Effects of Restricting Intake of Energy),
and/or glycemic load are not associated with body       designed to examine the effects of calorie
weight and do not lead to greater weight loss or        restriction on human health and aging.
better weight maintenance” (D5-21).

                                                                                                              12   13
Diabetes                                                                                                                    Potatoes in the American Diet
Largely because of their supposed high glycemic            indicated that, after adjusting for potential                    In early 2011, the Department of Health and Human   plate) and places a strong emphasis on fruits
index, potatoes have been implicated in the                confounding demographic and lifestyle factors,                   Services and the United States Department of        and vegetables by filling half the plate with
development of type 2 diabetes and are often one           there was no observed association between the                    Agriculture (USDA) released the 2010 Dietary        these two important food groups. Research
of the first foods to be eliminated from the diabetic      frequency of potato (baked, boiled and mashed)                   Guidelines for Americans. A strong emphasis         indicates that putting potatoes on the plate
diet. Nonetheless, existing research examining             consumption and the prevalence of type 2 diabetes.               was made on reducing calorie consumption and        can improve the overall diet quality of both
the role of GI in the genesis and/or management                                                                             increasing physical activity. The other two areas   adults and children. Using dietary intake
                                                           The American Dietetic Association does not
of type 2 diabetes is controversial, rendering                                                                              of strong focus were consuming more “healthy        data from the NHANES database, Dr. Adam
                                                           endorse the elimination of any food or food
definitive conclusions of the subject difficult.                                                                            foods” like fruits and vegetables, as well as       Drewnowski and colleagues (Drewnowski et
                                                           groups, but rather supports a “total diet approach”
Indeed, there are equally as many studies showing                                                                           consuming less sodium, saturated and trans fats,    al. 2011, Drewnowski and Rehm 2011) from the
                                                           where “all foods can fit if consumed in moderation
a beneficial role of GI for type 2 diabetes as those                                                                        added sugars and refined grains. Potatoes fit       University of Washington examined the nutrient
                                                           with the appropriate portions sizes” (Freeland-
showing no benefit (van Wouldenbergh 2011,                                                                                  squarely among all the recommendations.             intakes and diet quality of adults and children
                                                           Graves et al. 2007). Likewise, the American
Marsh et al. 2011, Mosdol et al. 2007).                                                                                                                                                                      classified by the
                                                           Diabetes Association conducted an extensive                      Overweight and obesity                                                           frequency of potato
Moreover, many of the studies implicating GI and,          review of scientific studies and concluded that,                 in the U.S. exceeds two-                                                         consumption.
more specifically potatoes, in the development             for people with type 2 diabetes monitoring                       thirds of the population,                                                        The results
of type 2 diabetes have been epidemiological in            carbohydrate intake, whether by carbohydrate                     so it’s no surprise the                                                          indicated those
nature (demonstrating only an association and not          counting or experience-based estimation, remains                 2010 Dietary Guidelines                                                          who consumed
causation), have not differentiated between potato         a key strategy in achieving glycemic control                     for Americans also                                                               baked, boiled and
products (i.e., highly processed potatoes vs. fresh        (American Diabetes Association).                                 highlight the importance                                                         roasted potatoes
potatoes) and/or have not adequately controlled                                                                             of weight management.                                                            had higher intakes
                                                           Determining how much carbohydrate you need
for potential confounding dietary and other                                                                                 As described previously,                                                         of potassium and
                                                           each day depends on many things including how
lifestyle factors (e.g., fat intake, fruit and vegetable                                                                    potatoes can be a part of                                                        vitamin C and
                                                           active you are and what, if any, medicines you take.
intake, red meat intake, fiber intake, physical                                                                             a weight loss program.                                                           consumed more
activity, socioeconomic status, etc.) (Halton et al.       A good place to start is to aim for about 45-                    Moreover, potatoes also                                                          total vegetables in
2006, Drewnowski 2011).                                    60 grams of carbohydrate at a meal (American                     provide two of the key                                                           a day compared to
                                                           Diabetes Association). You may need more or less                 “shortfall” nutrients                                                            those who did not
Indeed, when these confounding factors are
                                                           carbohydrate at meals depending on how you                       identified by the 2010                                                           consume potatoes.
controlled, any relationship between potatoes
                                                           manage your type 2 diabetes. Once you know how                   Dietary Guidelines
and type 2 diabetes seems to disappear. In a
                                                           much carbohydrate to eat at a meal, choose your                  Advisory Committee — potassium and fiber
recent study Drewnowski (2011) used data from
                                                           food and the portion size to match. And don’t shy                — which are nutrients currently consumed in
two cycles of NHANES (2003-4 and 2005-6)
                                                           away from potatoes; they can make a significant                  inadequate amounts by Americans. The number
to evaluate the association between potato
                                                           contribution to your daily vitamin and mineral                   one listed food source for potassium is potatoes,
consumption frequency and incidence of type 2
                                                           requirements. A 5.3 oz potato, eaten with the skin,              with 738 mg for a standard portion. (Note: USDA
                              diabetes. Statistical
                                                           delivers 45% of the Daily Value for vitamin C, 2                 and FDA use different potato portions in their
                              adjustment was
                                                           grams of fiber and more potassium than a banana                  databases).
                              made for potential
                                                           (620 mg). The following potato servings provide
                              confounding                                                                                   To further illustrate the 2010 Dietary Guidelines
                                                           about 15 grams of carbohydrate:
                              factors including                                                                             for Americans, the USDA replaced the
                              race/ethnicity,              •	 otato, boiled, 1/2 cup or 1/2 medium (3 oz.)
                                                            P                                                               multicolored pyramid with MyPlate. This icon
                              education, diet              •	 otato, baked with skin, 1/4 large (3 oz.)
                                                            P                                                               provides a visual representation of the food
                              quality, and physical        •	 otato, mashed, 1/2 cup
                                                            P                                                               groups that should make up a meal (i.e., a
                              activity. The results

                                                                                                                  14   15
potato e s 1 0 1
Hi s to r y o f                                                                                            HO W to b u y a n d
t h e p otato                                                                                              s to r e p otato e s

The cultivation of potatoes is believed to date back 10,000 years around Lake                              How to Select the Best Potatoes
                                                                                                           Look for clean, smooth, firm-textured potatoes
Titicaca (in modern-day Peru and Bolivia), when the first inhabitants of this
                                                                                                           with no cuts, bruises or discoloration.
region began selecting edible forms of wild potato species. However, the earliest
farming of the modern potato (Solanum tuberosum) began in about 1400                                       Store Properly to Keep Potatoes Fresh
                                                                                                           •	 tore potatoes in a well-ventilated place, 		
                                                                                                            S
BC with the emergence of agricultural communities in this and other areas of                               	 optimally at a temperature between
South America. The hardiness of potatoes rendered them the ideal crop for                                  	 45°F and 55°F.

the mountainous regions of Peru, where fluctuating temperatures, poor soil                                 •	 older temperatures (as in a refrigerator) cause 	
                                                                                                            C
conditions, and thin air made it nearly impossible to harvest wheat or corn.                               	 a potato’s starch to convert to sugar, resulting 		
                                                                                                           	 in a sweet taste and discoloration when cooked. 	
Potatoes made their way to Europe in the early 1500s. Spanish conquistadors
                                                                                                           	 If you do refrigerate, letting the potato warm 		
invaded South America in search of gold and silver and began carrying the                                  	 gradually to room temperature before cooking 	

potatoes back to their homeland aboard their ships. The Spanish sailors                                    	 can reduce the discoloration.

appreciated the “tartuffos” (as they were called) for the protection they offered                          •	 void areas that reach high temperatures 		
                                                                                                            A
                                                                                                           	 (beneath the sink or beside large appliances) or 	
from scurvy (later found to be due to their significant vitamin C content).
                                                                                                           	 receive too much sunlight (on the countertop 		
                                                                                                           	 near a window).
                                  Today, roots and tubers are the third largest carbohydrate
                                  food source, representing nearly half of all root crops                  •	 erforated plastic bags and paper bags offer 		
                                                                                                            P
                                  consumed (FAO/WHO report 1998). Potatoes are grown                       	 the best environment for extending shelf-life.

                                  in all 50 states of the U.S. and in about 125 countries                  •	 eep potatoes out of the light.
                                                                                                            K
                                                                                                                                                                   “Green” Potatoes or Sprouting Potatoes
                                  throughout the world, and they continue to be valued for
                                                                                                           •	 on’t wash potatoes (or any produce for that 		
                                                                                                            D                                                      	 •	 reen on the skin of a potato is the build-up
                                                                                                                                                                      G
                                  their durability and the fact that they are nutrient rich.
                                                                                                           	 matter) before storing. Dampness promotes 		          		 of a chemical called Solanine. It is a natural 		
                                  Potatoes have long held the prominent position of being
                                                                                                           	 early spoilage.                                       		 reaction to the potato being exposed to too 		
                                  America’s favorite vegetable, and are also considered
                                                                                                                                                                   		 much light. Solanine produces a bitter taste
                                  America’s favorite side dish (vs. rice and pasta), according                                                                     		 and if eaten in large quantity can cause illness.
                                  to the USPB’s annual Attitude & Usage Study. In 2010,
                                                                                                                                                                   	 •	 f there is slight greening, cut away the green 		
                                                                                                                                                                      I
                                  80% of American’s consumed potatoes in-home 3.8 times
                                                                                                                                                                   		 portions of the potato skin before cooking
                                  in the average two-week period, according to National
                                                                                                                                                                   		and eating.
                                  Eating Trends©, a service of the NPD Group. In October
                                  1995, the potato became the first vegetable to be grown                                                                          	 •	 prouts are a sign that the potato is trying
                                                                                                                                                                      S
                                  in space. That collaborative project between the National                                                                        		 to grow. Storing potatoes in a cool, dry,
                                  Aeronautics and Space Administration (NASA) and the                                                                              		 dark location that is well ventilated will

                                  University of Wisconsin, Madison was conducted with the                                                                          		reduce sprouting.

                                  goal of feeding astronauts on long space voyages and,                                                                            	 •	 ut the sprouts away before cooking or
                                                                                                                                                                      C
                                  perhaps, eventually feeding future colonies in space.                                                                            		 eating the potato.


                                                                                                 18   19
F r e s h p otato T Y P ES

                                                                                                        Yellows
                                                                                                        This type, well-known throughout Europe and fast gaining popularity in
There are hundreds of potato varieties planted around the
                                                                                                        the U.S., boasts golden skin and golden flesh. One favored use is grilling.
world today. The seven main potato types consumers most                                                 Its crispy skin enhances the dense and buttery texture of the flesh.
often see at the store today are:                                                                       Grilling brings out this quality best, dazzling the palate with its slightly
                                                                                                        sweet, caramelized flavor. That naturally smooth and buttery texture also
                                                                                                        lends itself well to lighter versions of baked or roasted potatoes.
                     Russets
                     Russets are the most widely used potato type in the United States,
                     characterized by a brown, netted skin and white flesh. One favored                 Purples/Blues
                     use for russets is baking. The delicious result has a light and fluffy             Relative newcomers to the produce department, purple potatoes have
                     center, surrounded by a tasty, robust and crispy roasted skin. The                 a deep purple skin with flesh that ranges from purple to lavender to
                     delicate potato flavor and grainy texture of a baked russet makes                  almost white. The rich, vibrant color and luscious taste make tossed
                     it the ideal partner for a variety of toppings, as flavor infusion is              salads a favored use for this type. The moist, firm flesh retains its
                     so natural to this type. Russets also create light and fluffy mashed               shape while adding rich colors to any salad. Because of their mild, yet
                     potatoes and traditional crispy, pan-fried potatoes.                               distinctly nutty flavor, purple potatoes naturally complement green
                                                                                                        salad flavors. Purple potatoes are also sensational roasted – or try
                                                                                                        combining purples with fingerlings or reds to instantly create a colorful
                     Reds                                                                               side dish bursting with flavor!
                     This variety, once only available in late summer and early fall,
                     is widely known for its rosy red skin and white flesh. One of its
                     favored uses is in soups and stews. Its moist, waxy flesh stays                    Fingerlings
                     firm throughout the cooking process and the vibrant red skin                       This category of potatoes encompasses a wide variety of small, slender
                     adds an appealing color to enhance the presentation of any dish.                   “finger-sized” potatoes, typically ranging from 2 to 4 inches in length.
                     The slightly sweet and always-tender texture also absorbs the                      These varieties come in a wide range of skin and flesh colors – red,
                     hearty flavors of the stock. In addition to savory soups and stews,                orange, purple, yellow and white – and most possess a firm, waxy texture.
                     reds are frequently used to make tender, yet firm potato salad or                  Pan-frying, one favored use, enhances their robust flavor and showcases
                     creamy mashed potatoes.                                                            their wonderful nutty or buttery tastes. Roasting creates a similarly
                                                                                                        delightful flavor sensation. Even consider fingerlings as a change-of-pace
                                                                                                        foundation for a truly unique potato salad.

                     Whites
                     This all-purpose potato type has a white flesh and white (sometimes
                     light tan) skin. Mashing is one favored use. These slightly dense                  Petites
                     and creamy potatoes have a subtly sweet flavor. Their delicate, thin               Petites are small, even “bite-sized” potatoes and share the same
                     skins add just the right amount of texture to a mashed potato dish                 characteristics – color, flavor and texture – as their full-sized cousins.
                     without the need for peeling. Also, try grilling whites to bring out               Petites can be found in red, white, yellow, brown and purple. Don’t let
                     a more full-bodied flavor, or use them in soups and stews as they                  their size fool you, because their flavors are actually more concentrated
                     become tender, yet hold their shape well.                                          and they cook more quickly, which makes potato salads a favored use for
                                                                                                        these types. Petites also make colorful, delicious and fun roasted potatoes.




                                                                                              20   21
Ta b l e o f C o n t e n t s


                                    C oo k ing with
                                    potato e s




23
Meet our
p otato e x p e r t                                                                                                     Cooking Potatoes
                                                                                                                        •	 eep in mind, to preserve the abundance of
                                                                                                                         K
                                                                                                                        	nutrients in your potato, cook it in its skin. Steam
                              Creating a potato recipe is part art, part science…                                       	or microwave your potatoes instead of boiling, as 	
                                                                                                                        	 water naturally leaches some of the nutrients.
                              and all Patty. A home economist since 1981, Patty
                                                                                                                        •	 f you do boil, consider using that water to 		
                                                                                                                         I
                              has developed and tested nearly all the healthy                                           	 moisten your mashed potatoes or in soup.

                                                                                                                        •	 or every taste bud there is a unique and special 	
                                                                                                                         F
                              potato recipes in the USPB’s database.                                                    	 dish! Visit www.potatogoodness.com to find the 	
                                                                                                                        	 potato dish suited for your needs.

In 2005 Patty took over       Preparing to Cook                                                                         Leftovers
as the Food Editor for        •Gently scrub potatoes with a vegetable brush under cool running water. 	                 •	 efrigerate any leftovers within two hours of
                                                                                                                         R
Something Extra magazine,     	 The maximum nutrients are preserved when potatoes are cooked 		                         	 serving to prevent food-borne illnesses. Any 		
a struggling quarterly        	 and eaten with the skin on.                                                             	 meal leftovers should be consumed within a
publication of the Raley’s                                                                                              	 few days.
supermarket chain. Buoyed     •	 f peeling, use a vegetable peeler or sharp paring knife and keep the 		
                               I                                                                                                                                                 Microwave cooking instructions for baked potatoes
in large measure by the       	 peeling very thin, since many of the nutrients are found close to the skin.             •	 he USPB does not recommend freezing cooked 	
                                                                                                                         T                                                       to serve four: Cut a wedge (1/8-inch wide and
force of Patty’s creative                                                                                               	 potatoes at home as they become watery upon 	          1/2-inch deep) out of four medium (5 to 6-ounce)
will, Something Extra, has    •Chop or handle potatoes on a clean cutting board and be sure to use 		                   	 reheating. The potato is 80 percent water; and 	       potatoes. Place in a microwave-safe dish. Microwave
become something special,     	 proper safety techniques with all ingredients in a given potato dish to 		              	 when frozen, this water separates from the 		          on HIGH, uncovered, for 10 to 12 minutes depending
and she now creates nearly    	 avoid cross contamination with other foods.                                             	 starch and nutrients.                                  on strength of microwave. Use oven mitts to remove
50 recipes per issue for                                                                                                                                                         dish from microwave.
the magazine. Additionally,
                                                                                                                        How to Bake a Potato
                              •	 ometimes potatoes that are cut and uncooked take on a pinkish 		
                               S
                                                                                                                                                                                 Patty tip: Whether it’s part of a larger meal or the
Something Extra now           	 or brownish discoloration. It’s due to the carbohydrate in the food 		                  It’s the most common potato search
                                                                                                                                                                                 culinary centerpiece, everyone loves a potato. Of
publishes four times per      	 reacting with oxygen in the air. Potatoes that become discolored are
                                                                                                                        term on the Internet! How do you                         course, what you top your potato with determines
year with a circulation       	 safe to eat and do not 		
                                                                                                                                                                                 how healthy it is for you. So why not substitute your
approaching one million       	 need to be thrown out.                                                                  bake a potato? Let us count the ways!
                                                                                                                                                                                 normal toppings with some delicious alternatives.
copies per issue, making      	 The color usually 	                                                                     Basic cooking instructions for baked potatoes to         Consider sprucing up your spuds with:
Patty’s recipes more          	 disappears with cooking.                                                                serve four: With fork, pierce skin of four medium
popular than many national                                                                                                                                                       • Broccoli spears and low-fat Cheddar
                                                                                                                        (5 to 6-ounce) potatoes in several places. Bake in
cookbook authors.             •	 reserve the color
                               P                                                                                        preheated 400-degree oven 40 to 50 minutes, or           • Salsa, nonfat yogurt and cilantro
                              	 of cut potatoes by                                                                      until tender when tested with fork. The skin will be
Patty is the mom to                                                                                                                                                              • Vegetarian chili
                              	 storing them in cold                                                                    crispy and the pulp dry and fluffy.
Ben and Abbey and lives
                              	 water, and add lemon                                                                                                                             • Marinara sauce and parmesan cheese
in Folsom, Calif., with her
                              	 juice or a little                                                                       If you need to get dinner on the table in minutes, try
husband Vince. Her potato                                                                                                                                                        • Wasabi paste
                              	 vinegar. Limit water                                                                    baking potatoes in the microwave. The key to great
tips and ideas are woven                                                                                                                                                         • Bacon bits
                              	 soaking to two hours                                                                    microwave baked potatoes is cutting a thin wedge,
throughout this section.                                                                                                                                                         • Grilled veggies
                              	 to retain water-                                                                        lengthwise, approximately 1/8-inch wide and 1/2-
                              	 soluble vitamins.                                                                       inch deep. This is done so the steam can fully escape    • Healthy buttery spread and sea salt
                                                                                                                        from the potato, resulting in a dry and fluffy pulp.


                                                                                                              24   25
How to Make Perfect Mashed Potatoes                      How to Bake Fries                                                 Potato Salad Possibilities                     Grilling With Potatoes
What else do we get asked? How to                                                                                          Grandma’s potato salad is a cherished          Grill, barbecue, cookout – no matter
                                                         Retain all the healthy goodness
make perfect mashed potatoes, of                                                                                           recipe. But if you’re looking for a new        what you call it, nothing beats out-
                                                         of the potato’s nutritious profile
course! With skins or without? Russets,                                                                                    side dish the whole family will love, try      door cooking, and not just during the
                                                         while creating a family favorite by
                      Yukon Golds,                                                                                         these 20 twists on classic potato salad.       warm summer months. Potatoes are
                                                         baking potato wedges in the oven
                      reds, or whites?                                                                                     Creamy Potato Salad with Chives and Gherkins   the second most popular vegetable
                                                         with vegetable oil and Italian herb
                      It’s the great                                                                                       Jicama and Baby Potato Salad
                                                                                                                                                                          to grill, according to the Hearth, Pa-
                                                         seasoning. Serve with a fresh salsa
                      potato debate                                                                                                                                       tio and Barbecue Association. They
                                                         for healthy dipping.                                              Loaded Baked Potato Salad
                      and everyone                                                                                                                                        are the perfect accompaniment to all
                                                                                                                           Roasted Fingerling Potato Salad with
                      seems to have a                    Basic cooking instructions for baked fries to serve                                                              meats, and no matter what the spice,
                                                                                                                           Lemon & Thyme
                                                         four: Heat oven to 450 degrees. Slice 3 medium
                      personal favorite.                                                                                   Potato Salad with Pomegranate and              they are the ideal canvas for a variety
                                                         potatoes (5 to 6 ounces each) lengthwise 3/4-inch
                                                                                                                           Avocado Dressing                               of flavor. By using a microwave to par-
                                                         thick, then cut each slice into 3/4-inch long sticks.
Basic cooking instructions for mashed potatoes to
                                                         Place in large bowl. Drizzle with 1 tablespoon                    Cajun Potato Salad                             cook your potatoes, actual cook time
serve four: Leave skin on or peel three medium
(5 to 6-ounce) potatoes. Cut into 1-inch chunks.
                                                         canola or other vegetable oil and sprinkle with                   Beet and Purple Potato Salad                   is reduced dramatically.
                                                         1 teaspoon dried Italian herb seasoning and 1/4
Place potato pieces in medium pot and pour over                                                                            Grilled Pesto Potato Salad
                                                         teaspoon salt (or to taste); toss to coat evenly.
enough water (or reduced-sodium broth) to cover.                                                                                                                          Add grilled potatoes before mixing in your salad for
                                                         Arrange potato pieces in a single layer on                        Lightened Fingerling Potato Salad with
Set pan over high heat and bring to a boil. Boil 10                                                                                                                       a unique twist on a summer-time staple (see Grilled
                                                         nonstick baking sheet or baking sheet coated with                 Caramelized Onion, Bacon and Blue Cheese
minutes, or until tender. Drain, then shake potatoes                                                                                                                      Pesto Potato Salad recipe on page 34). For a patio
                                                         vegetable cooking spray. Bake 20 to 25 minutes                    Truffled Potato Salad with Garlic
over low heat 1 minute to dry. Mash with potato                                                                                                                           party, serve potato wedges from the grill, and pass
                                                         until potatoes are golden brown, turning once                     Roasted Mushrooms
masher or fork.                                                                                                                                                           around flavorful dipping sauces (see Potato Dippers
                                                         after 15 minutes. Serve immediately.                              Mexican Potato Salad                           with a Trio of Sauces on page 36). Encourage kids
Microwave cooking instructions for mashed potatoes
                                                         Patty tip: Mash together rosemary, salt and                       Potato Salad with Mackerel and Water Cress     to play with their food by serving up kabobs—
to serve four: Place four medium (5 to 6-ounce)
                                                         pepper in a small                                                                                                everyone’s favorite (see Grilled Potato Kabobs with
whole potatoes (do not poke) into microwave-safe                                                                           Tzatziki Potato Salad
                                                         bowl with the                                                                                                    Lemon-Herb Drizzle on page 33).
dish. Cover dish. (If covering dish with plastic wrap,                                                                     German Potato Salad with a Kick
                                                         back of a spoon;
poke small hole in plastic.) Microwave on HIGH for 10
                                                         sprinkle over                                                     Roasted Potato and Radish Salad
to 12 minutes depending on strength of microwave.
                                                         cooked potatoes
Use oven mitts to remove dish from microwave;                                                                              Minted Avocado Potato Salad
                                                         and toss well to
carefully remove cover and mash well.
                                                         coat. Healthy and                                                 Indian Potato Samosa Salad

Patty tip: My favorite way to prepare mashed             delicious fries are                                               Baked Potato with Pineapple Salad
potatoes is in the microwave. Not only does it           quick, easy and
                                                                                                                           Southwestern Potato Salad
save time and the extra mess, I find the potatoes        full of flavor!
preserve the most moisture with this technique.                                                                            Potato Salad with Mozzarella and Tomato
To keep the potatoes healthy, use a healthy
spread, fat-free plain yogurt or low-fat milk. Try                                                                         Above recipes available at
stirring in fresh spinach, salsa, low-fat sour cream     Don’t be afraid to use the                                        www.potatogoodness.com/recipes
and low-fat cheddar or sautéed onions, carrots
                                                         microwave for speeding up all
and zucchini for additional flavor.
                                                         your potato recipes.
                                                                                                                 26   27
R e s tau r a n t c h e f s
lov e p otato e s
                                                                                                                                                                   On the Menu
                                                    Year after year, potatoes remain                                                                               Potatoes are showing up in surprising places
                                                                                                                                                                   on American menus; they’re topping salads,
                                                    the best-selling side dish in                                                                                  taking over for meat and adding flavor wow in
                                                                                                                                                                   restaurants from coast-to-coast:
                                                    foodservice. They’re familiar and
                                                                                                                                                                    •	 Chain restaurant Chevy’s Fresh Mex is serving
                                                    satisfying, easy to eat and easy
                                                                                                                                                                      a Mesquite-Grilled Steak and Potato Salad
                                                    to love. Even the simplest side of                                                                                with chipotle roasted potatoes on hearts of
                                                                                                                                                                      romaine and baby greens.
                                                    creamy mashed or crispy roasted
                                                                                                                                                                    •	 Mimi’s Café is serving Salmon Provence Salad
                                                    potatoes has the power to
                                                                                                                                                                      with mixed greens, feta, cucumber, artichokes
                                                    upstage any entrée paired with it.                                                                                and red potatoes.

                                                                                                              Potatoes in Restaurants: The Facts
                                                    Chefs continue to find innovative                                                                               •	 Pizza Luce, with six locations in Minnesota,
                                                                                                              Potato sides on the menu increased four percent         serves two popular pizzas topped with
                                                    potato preparations that please                           over the course of 2010. In fact, 1,440 new potato      potatoes: The Baked Potato Pizza is topped
                                                                                                              mentions were added to chain restaurant menus.
                                                    the palates of customers from                                                                                     with potatoes, broccoli and fresh tomatoes
                                                                                                                                                                      and the Garlic Mashed Potato Pizza is paired
                                                    coast-to-coast. Here are some                             •	 Three of the top 10 side dishes at chain             with feta cheese.
                                                                                                                 restaurants are potato-based.
                                                    hot, new potato trends happening                                                                                •	 Pokez in San Diego offers potatoes in place
                                                                                                                                                                      of meat in almost all of their entrees including
                                                    in restaurants.                                           •	 French fries, baked potatoes and mashed
                                                                                                                 potatoes continued to be the most popular            enchiladas, tacos, flautas and quesadillas.
                                                                                                                 potato items.

Focusing on Side Dishes
                                                                                                              •	 Seasoned, garlic and white cheddar continued
Side dishes are the top culinary trend for 2011     the country like
                                                                                                                 to dominate the top potato side dish flavors.
according to Flavor & the Menu. This leading        in Café Gibraltar
                                                                                                                 Cajun, chile and parmesan cheese were also
trade reports that the top culinary trend for       in Half Moon
                                                                                                                 popular side dish flavors.
2011 is “Sides Take the Lead”. As America’s         Bay, California
favorite side dish, potatoes are one side that’s    where Chef Jose
                                                                                                              •	 The top four potato preparations were fried,
already a center-stage favorite. The magazine       Luis Ugalde
                                                                                                                 French-cut, mashed and baked.
says, “Inspired by flavor-discerning and health-    serves braised
conscious public, along with year-round acces-      potatoes with
                                                                                                              •	 Crispy, Golden and Homestyle were the top
sibility to top-quality produce, chefs are giving   his calamari and
                                                                                                                 marketing claims used on menus to describe
veggies the attention typically reserved for        as a key flavor
                                                                                                                 potato side dishes.
protein.” The magazine recommends applying          in his lamb stew.
center of the plate cooking methods like roast-     Braised potatoes also appear as a hash served
                                                                                                              •	 The “Trans-Fat-Free” claim continued to be the
ing and charring to vegetable sides. We’re see-     at Angéle Restaurant in downtown Napa.
                                                                                                                 most widely used nutritional claim describing
ing this idea pop up in hot restaurants across
                                                                                                                 potatoes on the menu.
                                                                                                              Source: Mintel Menu Insights

                                                                                                    28   29
P otato
story id e as
P otato s to r y i d e a s
                                                                                                                            May                                                      July
                                                                                                                            Grill, barbecue, cookout – no matter what you call it,   There’s no need to heat up your kitchen during the
                                                                                                                            nothing beats outdoor cooking in the warm summer         dog-days of summer. Next time you’re invited to a
January                                                  March
                                                                                                                            months. The potato is not only a family favorite,        summer potluck, try Cookout Potatoes, a delicious
This year, resolve to skip the fad diets and focus       Perhaps the potato
                                                                                                                            but is also the second most popular vegetable to         grill-top “au gratin” sure to be a hit served
on real nutrition. Discover the healthy potato and       is America’s Favorite
                                                                                                                            cook on the outdoor grill, according to the Hearth,      alongside any meat. The bacon and bell pepper
                            the nutrition packed         Vegetable because so
                                                                                                                            Patio and Barbecue Association. This summer, treat       add great color and texture, but the minimal prep,
                            inside. With just 110        many Americans claim
                                                                                                                            BBQ party attendees with the USPB’s Grilled Potato       and “to go” container might be the best part.
                            calories and no fat in       Irish blood. According
                                                                                                                            Kabobs with Lemon-Herb Drizzle.
                            a medium-size potato,        to History.com, there                                                                                                                                   Consider this:
                            spuds are a nutritious       are 34.7 million U.S.                                              Cinco de Mayo is a great excuse to celebrate                                         Potatoes come in
                            and flavorful way to start   residents who claim Irish ancestry - almost nine                   with papas (Spanish for “potatoes”)! Potatoes                                        red, white and blue.
                            the New Year.                times the population of Ireland itself! Irish or not,                                        have long since been a                                     Call it serendipity or,
                                                         everyone loves potatoes, so consider serving the                                             staple in Latino cooking,                                  perhaps, patriotic
Please your guests’ palettes with a healthy and
                                                         USPB’s healthy but traditional Colcannon Chowder                                             so spruce up your fiesta                                   planters, but put these
trendy potato recipe for your New Year’s Eve
                                                         on St. Patrick’s Day.                                                                        spread with Potato                                         tubers together into
gathering. The USPB’s recipe for Potato Dippers
                                                                                                                                                      Nachos or individual           a vibrantly-colored Red, White and Blue Potato
with a Trio of Dipping Sauces will amaze guests          Peel back the truth during National Nutrition Month
                                                                                                                                                      helpings of Mexican            Salad and you’re guaranteed to add festivity to
when they learn that these delicious fries are not       and discover a seriously healthy vegetable – one
                                                                                                                                                      Chicken Potato Soup.           Fourth of July gatherings.
only naturally nutritious, but the dipping sauces        medium-size potato has just 110 calories, is fat-free,
are low-fat, too!                                        provides 45 percent of your daily value of vitamin C
                                                                                                                            June                                                     August
                                                         and, when eaten with the skin, has more potassium
                                                                                                                            The USPB boasts a wide range of potato salad             Summer savings tip:
February                                                 than a banana!
                                                                                                                            recipes with everything from Spicy Roasted               Healthy eating and
It’s no coincidence that February is Potato Lovers’
                                                         April                                                              Potato Salad to a                                        budget cutting can go
Month and American Heart Month. Did you know
                                                         Whether you’re                                                     Caesar Potato Salad                                      hand-in-hand. Contrary
potassium can reduce your risk for heart disease?
                                                         attending an Easter                                                that incorporates                                        to popular belief, you
What many Americans don’t realize is that potatoes
                                                         Brunch gathering or                                                fingerling potatoes.                                     don’t have to sacrifice
are a good source of potassium. Consuming
                                                         hosting your own, our                                              Each of these                                            nutrition when eating
more potassium can help reduce the risk of high
                                                         Potato and Egg Bake                                                recipes is as healthy                                    on a budget. Pound
blood pressure. So show your heart a little love by
                                                         recipe is a sure-fire hit                                          as it is convenient                                      for pound, potatoes are one of the best values in
incorporating potatoes into your diet.
                                                         that everyone will love. Packed with vegetables,                   and delicious.                                           the produce department. Averaging 25 cents per
Amaze football fans and                                  it’s easy to make ahead of time. Consider doubling                                                                          serving, you can’t afford NOT to include potatoes
                                                                                                                            June is National Fruit and Vegetables Month, and
foodies alike by serving                                 the recipe because we can guarantee guests will                                                                             in your diet.
                                                                                                                            the potato just so happens to be America’s Favorite
traditional snacks with a                                be looking for seconds!
                                                                                                                            Vegetable. Celebrate with a different potato dish        What’s your potato IQ? Contact the USPB for
healthy twist. The USPB’s
                                                         The USPB’s makeover series of classic potato                       every day of the month – or at least once a week!        a potato nutrition quiz to celebrate the back to
recipes for Cheesy Potato
                                                         recipes, including mashed and baked, as well                       With potato recipes that are perfect for breakfast,      school season. Find out if you’ve got a PhD in
Skins with Sun-Dried
                                                         as fries, casseroles, soups and salads, will have                  lunch and dinner, the USPB has plenty of vegetarian      Potatoes, Bachelor of Taters, need to hit the books
Tomatoes will leave your
                                                         families tricked into believing that mom slaved                    recipes ideal for increasing your family’s veggie        and eat potatoes as a study snack, or if you’re a
party guests happy even
                                                         in the kitchen for hours to make something so                      consumption – and kids won’t turn up their noses at      Tater Tot and should go back to preschool.
if their team doesn’t win the big game! Guests won’t
                                                         delicious. Contrary to popular belief, potatoes                    these spuds!
even realize they’re saving on calories and fat as
they enjoy these satisfying game day snacks.             can be quick and healthy, providing a side dish
                                                         or main course in under 20 minutes.

                                                                                                                  32   33
September                                                                          November
Cool weather = comfort food cravings. But those                                    Give thanks to
cravings don’t have to mean extra calories.
Potatoes are the ultimate comfort food and there
                                                                                   America’s Favorite
                                                                                   Vegetable! An
                                                                                                                      h e althy
are many ways to keep them naturally nutritious                                    astounding 104 million             potato r e cip e s
and delicious. Try the USPB’s Potato Tomato Soup                                   medium-size (5.3
for a recipe that warms the body and the soul.                                     ounce) potatoes are
                                                     consumed on Thanksgiving Day, according to
                            Meat and potatoes is
                                                     The NPD Group’s National Eating Trends© data.
                            so yesterday. Chicken
                                                     From Browned Butter with Butternut Squash
                            and potatoes are the
                                                     Mashed Potatoes to White Chocolate Mashed
                            new perfect pairing.
                                                     Potatoes, the USPB is the #1 resource for all of
                            Celebrate National
                                                     your Thanksgiving potato needs and inspiration.
                            Chicken Month with
                            this budget-friendly     Cook once, eat twice. Leftovers are common during
dynamic duo. Try the USPB’s Mediterranean            the holidays but you don’t have to eat the same
Lemon Chicken and Potato Packets on the grill or     meal over and over. Serve a Tex Mex Shepherd’s
in the oven.                                         Pie using leftover turkey and mashed potatoes – so
                                                     good it’s great to serve to lingering company, too!
October
Celebrate potato                                     December
harvest morning, noon                                ‘Tis the season for
or night with the USPB’s                             indulging, but save
Vegetaters. Served                                   breaking the bank
with a simple egg white                              and busting the
omelet, the potatoes                                 waistline for special
are accompanied                                      holiday parties and
by broccoli florets and red and green peppers        celebrations on
for an added dose of vitamin C. One serving of       the weekends. The perfect weeknight meal is
this dish provides a whopping 92 percent of the      Pennywise Potato Turkey Wraps – they’re good
recommended daily value for vitamin C!               for the wallet and the waistline. Bonus: the recipe
                                                     represents all sections of the food pyramid!
                           There’s nothing scary
                           about potato nutrition!   Potatoes fit any holiday occasion. Need a festive
                           Potatoes are a great      appetizer that’s gorgeous, delicious and healthy
                           canvas for a Halloween    to boot? Red Potato and Cucumber Bites are
                           night dinner to get       a party show-stopper. For Hanukkah menu
                           the little gremlins out   planning, try Lightened-Up Latkes for a healthy
                           the door satiated and     twist on a holiday classic.
                           satisfied. The USPB’s
                                                     Recipes highlighted above can be found on pages
Pork and Potato Verde is the perfect one-pot
                                                     36 - 42 or at www.potatogoodness.com/recipes.
wonder to kick off a spooktacular evening.



                                                                                                            34   35
Cheesy Potato Skins                                                        Colcannon Chowder                                                                                                                                              Grilled Potato Kabobs with
with Sundried Tomatoes                                                     Makes 4 main-dish servings (about 6 cups)                                                                                                                      Lemon-Herb Drizzle
Makes 16 stuffed potato skins                                                                                                                                                                                                             Makes 4 to 6 servings
                                                                           	1 1/3	   pounds (4 medium) russet potatoes,

	   4	    medium russet potatoes (about 1 1/2 pounds)                      		        peeled and cut into 3/4-inch chunks                                                                                                                  Potato Kabobs
	 1/4	    cup fat free sour cream                                          	    1	   (14 ounce) can nonfat, reduced-sodium
                                                                                                                                                                                                                                          	   1	    pound russet potatoes
	   2	    ounces shredded Parmesan cheese                                  		        chicken broth
                                                                                                                                                                                                                                          	   1	    (12 ounce) package precooked chicken sausage, 	
	   2	    ounces shredded Mozzarella cheese                                	    1	   cup water
                                                                                                                                                                                                                                          		        sliced 1/4-inch thick on the diagonal
	 1/3	    cup finely chopped sun-dried tomatoes                            		        Salt
                                                                                                                                                                                                                                          	   2	    ears fresh corn, cut into 1-inch pieces
	 1/4	    cup sliced green onion tops                                      	   2	    tablespoons canola oil
                                                                                                                                                                                                                                          	   2	    bell peppers (any color), cubed
	   2	    tablespoons chopped fresh parsley                                	   3	    cups coarsely chopped green cabbage	
                                                                                                                                                                                                                                          	   1	    zucchini, sliced 1/4-inch thick on the diagonal
		        Pepper, to taste                                                 	 3/4 	   cup finely chopped onion
                                                                           	   8	    ounces smoked chicken or turkey sausage,
                                                                           		        sliced 1/4-inch thick
                                                                                                                                                                                                                                          Lemon-Herb Drizzle

Preheat oven to 375 degrees. Bake potatoes                                 	    1	   medium carrot, shredded                                                                                                                              	 1/4 	   cup extra virgin olive oil
50 minutes, or until tender. Let cool. Cut each                            	 1/2	    cup 1 percent milk (about)                                                                                                                           	   3	    cloves garlic, minced
potato in half. With a spoon, scoop out pulp                               		        Pepper, to taste                                                                                                                                     	   2	    tablespoons chopped fresh herbs (such as basil, 	
leaving 1/4-inch of potato in each half. Cut each                                                                                                                                                                                         		        rosemary, marjoram and sage)
half to form quarters. Season with salt and                                                                                                                                                                                               	 1/2 	   teaspoon sea salt, or to taste
pepper. Bake potato quarters for 15 minutes.                               In 3-quart saucepan,                                                                                                                                           	   1	    fresh lemon juice
(This will crisp them so that they can be picked                           cover potatoes with                                                                 Cookout Potatoes                                                           		        Freshly ground pepper to taste
up easily.)                                                                broth and water; add                                                                Makes 6 to 8 servings
                                                                           1 teaspoon salt. Bring                                                                                                                                                                    Heat olive oil in a small
Mash 1 cup potato pulp with a potato masher                                to boil over high heat;                                                             		        Nonstick cooking spray                                                                      saucepan until very
(save remaining pulp for a later use). Stir in the                         reduce heat, cover and                                                              	    1	   medium onion, halved and thinly sliced                                                      hot; remove from heat
sour cream, cheeses, tomatoes, green onions and                            cook until potatoes are                                                             	1 1/2	   pounds Yukon Gold potatoes, very thinly sliced                                              and stir in garlic. Let
parsley. Mixture will be sticky and hold together.                         tender, 12 to 15 minutes.                                                           	1 1/3	   cups shredded low-fat sharp Cheddar cheese                                                  cool, then stir in herbs,
With your hands, divide the mixture evenly                                 Set aside.                                                                          	 1/3	    cup real bacon bits                                                                         salt, lemon juice and
between the potato skins, pressing the mixture                                                                                                                 	 1/3	    cup chopped bell pepper (any color)                                                         pepper; set aside. Place
into the skins. Sprinkle with fresh ground black                           Meanwhile, heat oil
                                                                                                                                                               	 1/2	    teaspoon garlic salt                                                                        potatoes in a medium-
pepper and bake for 15 minutes. Serve warm.                                in 10-inch nonstick skillet over medium-high
                                                                                                                                                                                                                                                                     size microwave-safe bowl
                                                                           heat; add cabbage and onion. Sauté 10 minutes,
Nutritional analysis per piece: 70 calories, 1.5g fat, 1g saturated fat,                                                                                                                                                                                             and cover with a lid or
                                                                           tossing occasionally. Add sausage; continue to
0g trans fat, 5mg cholesterol, 75mg sodium, 244mg potassium, 11g                                                                                               Spray a 9 x 9 x 2-inch foil pan liberally with                             plastic wrap. Note: If using plastic wrap, make sure
carbohydrate, 1g fiber, 0g sugar: 4g protein, 4% DV vitamin A, 10%         sauté, about 10 minutes, tossing occasionally, until
                                                                                                                                                               nonstick cooking spray. Place half the onions,                             plastic wrap is not touching any ingredients and
DV vitamin C, 8% DV calcium, 4% DV iron.                                   vegetables and sausage begin to brown. Add
                                                                                                                                                               potatoes, cheese, bacon bits, bell pepper and                              poke one small hole in cover to vent. Microwave
                                                                           carrot; set aside.
                                                                                                                                                               garlic salt in pan. Repeat layers. Cover tightly with                      on high for 10 to 12 minutes or until potatoes are
                                                                           With slotted spoon, remove about 3/4 cup potato                                     foil and grill over medium heat for 1 hour, rotating                       tender (cooking time may vary depending on
                                                                           pieces and add to skillet. In electric blender, blend                               pan occasionally to avoid hot spots.                                       microwave). Use oven mitts to carefully remove
                                                                           remaining potatoes and liquid until smooth, being                                                                                                              from microwave. When cool enough to handle,
                                                                           careful to hold blender lid down with kitchen towel;                                Nutritional analysis per serving: 140 calories, 2.5g fat, 1.5g saturated   cut into large chunks. Thread potatoes, sausage
                                                                                                                                                               fat, 0g trans fat, 10mg cholesterol, 370mg sodium, 720mg potassium:
                                                                           return to saucepan. Add contents of skillet; mix                                                                                                               and vegetables onto skewers. Grill over medium-
                                                                                                                                                               20g carbohydrate, 1g fiber, 1g sugar, 10g protein, 2% DV vitamin A,
                                                                           in enough milk for consistency desired. Heat to                                     45% DV vitamin C, 10% DV calcium, 6% DV iron.                              high heat for about 10 minutes, turning frequently
                                                                           simmering. Season with salt and pepper.                                                                                                                        and brushing with a little of the herb mixture
                                                                                                                                                                                                                                          during the last few minutes of cooking. Remove
                                                                           Nutritional analysis per serving: 320 calories, 13g fat, 2.5g saturated
                                                                                                                                                                  Love the recipes you see here?                                          from grill and place on a platter; drizzle with
                                                                                                                                                                                                                                          remaining herb mixture.
                                                                           fat, 0g trans fat, 40mg cholesterol, 780mg sodium, 1023mg
                                                                           potassium, 54g carbohydrate, 6g fiber, 8g sugar, 14g protein, 60% DV
                                                                                                                                                               Sign up at www.potatogoodness.com
                                                                           vitamin A, 80% DV vitamin C, 15% DV calcium, 15% DV iron.
                                                                                                                                                               to receive a potato recipe via email                                       Nuturitional analysis per serving: 340 calories, 18g fat, 3.5g
                                                                                                                                                                                                                                          saturated fat, 0g trans fat, 55mg cholesterol, 680mg sodium, 682mg
                                                                                                                                                               every week. Forward the email and                                          potassium, 32g carbohydrates, 4g fiber, 6g sugar, 15g protein, 25% DV
                                                                                                                                                                                                                                          vitamin A, 200% DV vitamin C, 10% DV calcium, 15% DV iron.
                                                                                                                                                               encourage others to sign up too!

                                                                                                                                                     36   37
Grilled Pesto Potato Salad                                               Lightened Up Latkes                                                                                                                                         Pork and Potato Verde
Makes 8 servings                                                         Makes 4 servings                                                                                                                                            Makes 4 servings


	   3	    pounds medium-size red potatoes                                 2 1/2		   cups shredded, unpeeled russet potatoes                                                                                                          	    1	    tablespoon vegetable oil
		        Olive oil cooking spray                                        				       about 1 pound)                                                                                                                                   	1 1/2 	   pounds pork tenderloin, cut into 1-inch cubes
	 1/3 	   cup white or golden balsamic vinegar                           		 1/2		   cup grated onion                                                                                                                                 	    1	    (16 ounce) jar salsa verde
	 1/4 	   cup extra virgin olive oil                                     		 1/3		   cup peeled shredded carrot                                                                                                                       	    1	    (4 ounce) can diced green chiles
	 1/2	    teaspoon sea salt                                              		 1/3		   cup flour                                                                                                                                        	    1	    cup reduced-sodium chicken broth
	   3	    cloves garlic, minced                                          			 2	     tablespoons snipped fresh chives                                                                                                                 	    1	    teaspoon Mexican seasoning 			
		        Freshly ground pepper to taste                                 			 1	     teaspoon kosher salt                                                                                                                             		         (such as McCormick)
	 1/3 	   cup shredded Parmesan cheese                                   	 	1/4		   teaspoon freshly ground pepper                                                                                                                   	    1	    pound russet potatoes, peeled and cubed
	 1/4	    cup finely minced fresh basil                                  			 1 	 egg + 1 egg white                                                                                                                                   	   2	     green onions, sliced
	 1/4	    cup toasted pine nuts (optional)                               			 2 	 tablespoons vegetable oil, divided                                                                                                                  	    1	    cup rinsed and drained black beans

Place potatoes in a large microwave-safe bowl;                           Scrub potatoes and coarsely grate. Immediately                                                                                                              Heat oil in a large saucepan; add pork and brown
cover with lid or plastic wrap. Note: If using plastic                   place in a bowl of ice water to keep potatoes from                                                                                                          on all sides. Add salsa, chiles, broth and seasoning
wrap, make sure plastic wrap is not touching any                         discoloring; let stand for 5 minutes. Meanwhile,                                                                                                            to pan. Bring to a boil, reduce heat and simmer,
ingredients and poke one small hole in cover                             place the onion, carrot, flour, chives, salt, pepper                                                                                                        covered, for 30 minutes. Add potatoes; cook
to vent. Microwave on high for 10 to 12 minutes                          and eggs in a medium bowl and stir well. Drain the                                                                                                          for 30 minutes more or until pork is very tender.
or until potatoes are tender (cooking time may                           potatoes and squeeze out moisture; stir into egg                                      Mediterranean Lemon Chicken                                           Uncover; add green onions and beans and cook for
vary depending on microwave). Use oven mitts                             mixture. Heat 1 tablespoon oil in a large non-stick                                   and Potato Packets                                                    about 5 minutes more or until sauce has thickened.
                                         to carefully                    skillet over medium-high heat until very hot. Spoon                                   Makes 4 servings
                                                                                                                                                                                                                                     Nutritional analysis per serving: 560 calories, 15g fat, 4g saturated fat,
                                         remove from                     about 1/4 cup of potato mixture for each pancake                                                                                                            0g trans fat, 160mg cholesterol, 1300mg sodium, 41g carbohydrates,
                                         microwave.                      into skillet, cooking four at a time. Cook for 3 to                                   1 1/2 	   pounds boneless skinless chicken breasts,                   6g fiber, 6g sugar, 1465mg potassium, 62g protein, 4% DV vitamin A,
                                         When cool                       4 minutes per side, flattening with the back of a                                     		        cut into 1-inch cubes
                                                                                                                                                                                                                                     45% DV vitamin C, 6% DV calcium, 30% DV iron.

                                         enough to                       spatula and cooking until golden brown and crisp                                      	   1	    pound Yukon Gold potatoes, cut into
                                         handle, cut                     on both sides. Drain on paper towels. Repeat with                                     		        3/4-inch cubes
                                         potatoes in                     remaining oil and potatoes. Serve immediately                                         	   1	    medium onion, coarsely chopped
                                         halves or                       with chunky applesauce and low-fat sour cream.                                        	 1/2 	   cup reduced-fat Greek or olive oil vinaigrette
                                         quarters and                                                                                                          	 1/3 	   cup quartered Kalamata olives (optional)
                                                                         Nutritional analysis per serving: 220 calories, 8g fat, 1g saturated fat,
                                         spray liberally                                                                                                       	 1/4 	   cup lemon juice
                                                                         0g trans fat, 55mg cholesterol, 520mg sodium, 562mg potassium,
                                         with olive oil                  31g carbohydrate, 2g fiber, 2g sugar, 6g protein, 35% DV vitamin A,                   	   1	    teaspoon dry oregano
                                         spray. Grill                    40% DV vitamin C, 40% DV calcium, 10% DV iron.
                                                                                                                                                               	   1	    teaspoon garlic salt
                                         over high                                                                                                             	 1/2 	   cup chopped tomato
                                         heat for 5 to
                                         7 minutes,                                                                                                            Mix all ingredients except tomatoes in a large bowl.
turning occasionally, until grill lines are apparent.                                                                                                          Place equal amounts onto four large squares of
Remove from grill and let cool. Cut into bite-sized                                                                                                            heavy-duty foil. Fold in top and sides of each to
pieces and place in a large bowl. Whisk together                                                                                                               enclose filling, leaving room for air to circulate. Grill
vinegar, oil, salt and garlic; pour over potatoes and                                                                                                          over medium heat for about 25 to 30 minutes or
toss lightly to coat. Season with pepper, then cover                                                                                                           until chicken is cooked through and potatoes are
and refrigerate until ready to serve. Just before                                                                                                              soft. Carefully open packets and sprinkle equal
serving, toss with Parmesan cheese and basil, then                                                                                                             amounts of tomato over each.
sprinkle with pine nuts.
Nutritional analysis per serving: 210 calories, 8g fat, 1.5g saturated                                                                                         Note: Packets may also be baked at 400 degrees for 30
fat, 0g trans fat, 5mg cholesterol, 230mg sodium, 784mg potassium,                                                                                             minutes instead of grilling.
29g carbohydrate, 3g fiber, 2g sugar, 5g protein, 2% DV vitamin A,
60% DV vitamin C, 8% DV calcium, 8% DV iron.                                                                                                                   Nutritional analysis per serving: 250 calories, 10g fat, 1.5g
                                                                                                                                                               saturated fat, 0g trans fat, 15mg cholesterol, 1030mg sodium, 32g
                                                                                                                                                               carbohydrates, 2g fiber, 5g sugar, 6g, protein, 118mg potassium, 6%
                                                                                                                                                               DV vitamin A, 60% DV vitamin C, 2% DV calcium, 8% DV iron.




                                                                                                                                                     38   39
Caramelized Onion and Chive                                       Potato Nachos
                                                                     Dipping Sauce                                                     Makes 4 servings


                                                                     	   1	    tablespoon extra virgin olive oil                       	1 1/2 	   pounds russet potatoes
                                                                     	   1	    medium onion, quartered and thinly sliced               	1 1/2 	   tablespoons vegetable oil
                                                                     	   1	    cup fat-free Greek yogurt                               	 1/2	     teaspoon garlic salt
                                                                     	 1/4 	   cup sliced chives or green onion tops                   	    1	    teaspoon Mexican seasoning blend
                                                                     	   2	    tablespoons fresh rosemary leaves                       	    1	    cup Mexican blend shredded
                                                                     		        Sea salt and freshly ground pepper to taste             		         reduced fat cheese	
                                                                                                                                       	 1/4 	    cup rinsed and drained canned black beans
                                                                     Heat oil in a medium skillet. Add onion and cook                  	 1/4 	    cup diced tomatoes
                                                                     over low heat for 20 minutes stirring frequently;                 	 1/4	     cup sliced black olives
                                                                     let cool. Puree onion and yogurt in a blender or                  	 1/4	     cup sliced green onions
                                                                     small food processor until smooth. Add chives                     	   3	     tablespoons canned diced green chiles
                                                                     and rosemary and pulse on and off until finely                    		         Salsa, guacamole and sour cream (optional)
                                                                     chopped. Season to taste with salt and pepper.
                                                                                                                                       Preheat oven to 425 degrees. Scrub potatoes and
Potato Dippers with a                                                                                                                  cut into 1/2-inch thick wedges. Place potatoes
Trio of Sauces                                                       Avocado Cilantro                                                  into a medium size bowl with the oil, garlic salt
                                                                                                                                       and Mexican seasoning. Stir well to coat potatoes
Makes 6 to 8 servings
                                                                     Dipping Sauce                                                     with oil and seasonings. Transfer to a large baking                       Potato & Egg Bake
	   2	    pounds russet potatoes, cut into wedges                                                                                      sheet and spread into a single layer. Bake for 25 to                      Makes 6 servings
                                                                     	 3/4 	   cup fat-free Greek yogurt
	   1	    tablespoon olive oil                                                                                                         30 minutes, stirring several times, until crisp and
                                                                     	   1	    ripe avocado, peeled and pitted
		        Sea salt, to taste                                                                                                           golden brown. Top with cheese, beans, tomatoes,                           	 3/4 	   pound red potatoes, cut into 1/2-inch cubes
                                                                     	   2	    cloves garlic
		        Sauces (see below)                                                                                                           olives, onions and chiles. Bake for 5 minutes more                        	 1/2 	   cup each: chopped red bell pepper and zucchini
                                                                     	 1/4 	   cup lightly packed fresh cilantro leaves
                                                                                                                                       to melt cheese. Serve with salsa, guacamole and                           	 1/4 	   cup sliced green onions
                                                                     	 1/2 	   tablespoon lime juice
Place potato wedges in a large bowl with olive oil;                                                                                    sour cream.                                                               	   2	    cups coarsely shredded 2 percent or
                                                                     		        Sea salt and freshly ground pepper to taste
toss well to coat. Grill over medium-high heat for                                                                                     Nutritional analysis per serving: 280 calories, 12g fat, 3.5g saturated   		        regular sharp Cheddar cheese
10 minutes, turning once or twice, until cooked                      Puree yogurt, avocado and garlic in a blender or                  fat, 0g trans fat, 20mg cholesterol, 560mg sodium, 796mg                  	   8	    eggs
                                                                                                                                       potassium, 36g carbohydrate, 2g fiber, 2g sugar, 13g protein, 8% DV
through and grill marks appear. Season with salt                     small food processor until smooth. Add cilantro                                                                                             	   3	    tablespoons flour
                                                                                                                                       vitamin A, 10% DV vitamin C, 30% DV calcium, 10% DV iron.
and serve immediately with dippers.                                  and lime juice and pulse on and off until finely                                                                                            	 3/4 	   teaspoon baking powder

Nutrients per serving (potatoes only): 140 calories, 2g fat, 0g      chopped. Season to taste with salt and pepper.                                                                                              	   1	    teaspoon garlic salt
saturated fat, 0g trans fat, 0mg cholesterol, 95mg sodium, 713mg                                                                                                                                                 	   1	    cup low-fat cottage cheese
potassium, 28g carbohydrate, 3g fiber, 1g sugar, 3g protein, 0% DV
vitamin A, 30% DV vitamin C, 2% DV calcium, 8% DV iron.
                                                                                                                                                                                                                 Preheat oven to 350 degrees and spray an 11 X
                                                                     Serve these potato dippers as a                                                                                                             7-inch casserole dish with nonstick cooking spray.
                                                                                                                                                                                                                 Spread potatoes, pepper, zucchini, green onions
Red Pepper Basil                                                     side dish or a fun appetizer at your                                                                                                        and cheddar cheese into prepared pan. Whisk
Dipping Sauce                                                        next gathering!                                                                                                                             together eggs, flour, baking powder and garlic salt.
                                                                                                                                                                                                                 Stir in cottage cheese and pour into prepared dish;
	 1/2 	   cup fat-free Greek yogurt
                                                                     The dipping sauces all use fat-free                                                                                                         stir lightly. Bake for 45 minutes or until eggs are
	 1/2 	   cup roasted red peppers, drained and patted dry
                                                                                                                                                                                                                 puffed, golden brown and set in the center.
	   2	    cloves garlic
                                                                     Greek yogurt as a base and can be
	 1/4 	   cup each: sliced green onions and basil leaves                                                                                                                                                         Nutritional analysis per serving: 310 calories, 14g fat, 7g saturated fat,
		        Sea salt and freshly ground pepper to taste                made up to 24 hours ahead and stored                                                                                                        0g trans fat, 315mg cholesterol, 800mg sodium, 21g carbohydrate,
                                                                                                                                                                                                                 2g fiber, 4g sugar, 379mg potassium, 23g protein, 25% DV vitamin A,
                                                                     tightly covered in the refrigerator.                                                                                                        60% DV vitamin C, 40% DV calcium, 10% DV iron.
Puree yogurt, peppers and garlic in a blender or
small food processor. Add onions and basil and
pulse on and off until finely chopped. Season to
taste with salt and pepper.



                                                                                                                             40   41
Red Potato and
                                                                             Cucumber Bites
                                                                             Makes 10 to 12 appetizer servings
                                                                                                                                                             r e s e arch
                                                                             	 2/3 	
                                                                             		
                                                                                        pound (about 12) small red potatoes,
                                                                                        uniform in size
                                                                                                                                                             abstracts
                                                                             	 1/2	     teaspoon salt
                                                                             	   6	     ounces reduced-fat cream cheese,
                                                                             		         at room temperature
                                                                             	    3	    ounces sliced smoked salmon, finely chopped
                                                                             	    2	    teaspoons fresh lemon juice
                                                                             	 1/4 	    teaspoon coarsely ground black pepper
                                                                             	   12 	   slices (1/2 inch thick) English cucumber
                                                                             		         Snipped chives, dried dill weed and/or
Potato Tomato Soup                                                           		         drained capers, for garnish
Makes 4 to 6 servings
                                                                             Halve potatoes; cut and discard a very thin slice
	   1	    tablespoon extra virgin olive oil                                  from skin side of each half. In 2-quart saucepan,
	   1	    medium onion, chopped                                              cover potatoes with water; add salt. Bring to
	   2	    stalks celery, sliced                                              boil over high heat, reduce heat, cover and cook
	   1	    pound russet potatoes, peeled and cubed                            until tender, 10 to 15 minutes, depending on size
	   1	    (32 ounce) container chicken broth                                 of potatoes. Drain; cool to room temperature.
	   1	    (28 ounce) can crushed tomatoes                                    Meanwhile, in small bowl, mix cheese, salmon,
	   2	    teaspoons dry basil                                                lemon juice and pepper to blend thoroughly. With
		        Garlic salt and freshly ground pepper to taste                     small spoon, mound salmon mixture onto potato
	   3	    cups lightly packed fresh spinach,                                 halves and cucumber slices, dividing equally (1 to
		        coarsely chopped                                                   1 ½ teaspoons each). Arrange on serving plate and
                                                                             add your choice of garnishes.
Heat oil in a large saucepan; add onion and cook
over medium heat for 5 minutes to lightly brown.                             If not served immediately, these can be prepared
Stir in celery, potatoes, broth and tomatoes.                                several hours in advance; cover and refrigerate.
Bring to a boil; reduce heat and simmer, covered,                            For best flavor, return to room temperature just
for 30 minutes. Let cool slightly, then purée                                before serving.
in a blender or food processor until smooth.
                                                                             Nutritional Analysis Per Serving (1/12 of batch): 70 calories, 3.5g fat,
Pour back into saucepan and stir in basil, garlic                            2g saturated fat, 0g trans fat, 10mg cholesterol, 218mg sodium, 5g
salt and pepper; cook for 5 minutes. Check                                   carbohydrate, 1g fiber, 1g sugar, 3g protein, 146mg potassium, 4% DV
                                                                             vitamin A, 10% DV vitamin C, 10% DV calcium, 2% DV iron.
seasonings, then add spinach and cook a minute
or two more to wilt spinach.

Serving suggestion: Add a small swirl of basil pesto
and a sprinkle of Parmesan cheese to each bowl for
added Italian flavor.
Nutritional analysis per serving: 180 calories, 4g fat, .5g saturated fat,
0g trans fat, 5mg cholesterol, 1070mg sodium, 33g carbohydrate, 6g
fiber, 3g sugar, 7g protein, 184mg potassium, 80% DV vitamin A, 80%
DV vitamin C, 15% DV calcium, 25% DV iron.




                                                                                                                                                        42
P otato e s a n d A n ti ox i da n t s
US P B - F u n d e d R e s e a r c h :                                                                                                 Title   Anthocyanin fraction from potato extracts is cytotoxic to prostate cancer cells through
                                                                                                                                               activation of caspase-dependent and caspase-independent pathways
                                                                                                                                  Author(s)    Reddivari L, Vanamala J, Chintharlapalli S, et al.
            Title   Effects of Potato Consumption on Oxidative Stress, Inflammatory Damage and Immune                       Journal/Citation   Carcinogenesis. 2007; 28:2227-2235
                    Response in Humans
                                                                                                                               Study Design    This study investigated the effects of specialty potato phenolics and their fractions
       Author(s)    Kaspar KL, Park JS, Brown CR, Mathison BD, Navarre DA, Chew BP.                                                            on LNCaP (androgen dependent) and PC-3 (androgen independent) prostate cancer
 Journal/Citation   Journal of Nutrition. 2011;141(1):108-11                                                                                   cells. Phenolic extracts from four specialty potato cultivars — CO112F2-2, PATX99P32-2,
                                                                                                                                               ATTX98462-3, and ATTX98491-3 — and organic acid, phenolic acid and anthocyanin
    Study Design    The purpose of this study was to assess the effects of pigmented potato consumption on                                     fractions were used.
                    oxidative stress biomarkers, inflammation and immune response in healthy adult males.
                    Free living healthy male participants (18-40 yr; n=12/group) were given 150 g of cooked                         Results    CO112F2-2 cultivar extracts and their AF at 5 mg chlorogenic acid eq/ml were more active
                    white- (WP), yellow- (YP) or purple-flesh potatoes (PP) once a day for 6 wk in a double-                                   and inhibited cell proliferation and increased the cyclin-dependent kinase inhibitor p27
                    blinded study. Blood was collected at baseline and wk 6 to analyze total antioxidant                                       levels in both LNCaP and PC-3 cells. Potato extract and anthocyanin fractions induced
                    capacity, DNA damage (8-OHdG), protein oxidation, lipid peroxidation, C-reactive protein                                   apoptosis in both the cells; however, the effects were cell-context dependent.
                    (CRP), inflammatory cytokines, lymphoproliferation, NK cytotoxicity and phenotypes.                          Conclusion    This is the first report showing that the cytotoxic activities of potato extract/anthocyanin
                    Potatoes were analyzed for total antioxidant capacity, phenolic acids, anthocyanins and                                    fractions in cancer cells were due to activation of caspase-independent apoptosis.
                    carotenoids.
          Results   Participants fed YP and PP had lower (P < 0.08) plasma IL-6 compared to those fed WP.
                    A concurrent decrease (P < 0.08) in CRP concentration was observed in the PP group.
                    Lower concentrations of 8-OHdG were observed in subjects fed either YP (P < 0.03) or
                    PP (P < 0.08) compared to those fed WP. Total Tc cells were lower while B cells were                               Title   Antioxidant capacity manipulation in transgenic potato tuber by changes in phenolic
                    higher in PP compared to the WP group (P < 0.05). Compared to WP, YP had high con-                                         compounds content
                    centrations of phenolic acids (P < 0.002) and carotenoids (P < 0.001), while purple pota-
                    toes had high concentrations of phenolic acids (P < 0.002) and anthocyanins (P < 0.001).                      Author(s)    Lukaszewicz M, Matysiak-Kata I, Skala J, et al.
      Conclusion    Pigmented potato consumption reduced inflammation and DNA damage, and modulates                         Journal/Citation   Journal of Agricultural and Food Chemistry. 2004; 52:1526-1533
                    immune cell phenotype in healthy adult males.                                                              Study Design    The purpose of this study was to generate potato tubers with increased levels of fla-
                                                                                                                                               vonoids and thus modified antioxidant capacities. To accomplish this, the vector carry-
                                                                                                                                               ing multigene construct was prepared, and several transgenic plants were generated, all
                                                                                                                                               over-expressing key biosynthesis pathway enzymes.
P otato e s a n d A n ti ox i da n t s                                                                                               Results   The single-gene over-expression or simultaneous expression of genes encoding chalcone
                                                                                                                                               synthase (CHS), chalcone isomerase (CHI), and dihydroflavonol reductase (DFR) resulted
Non-funded research:                                                                                                                           in a significant increase of measured phenolic acids and anthocyanins. The increase in
                                                                                                                                               phenolic compounds synthesis is accompanied by decreases in starch and glucose levels
                                                                                                                                               in transgenic plants.
            Title   Lipophilic and hydrophilic antioxidant capacities of common foods in the United States                       Conclusion    The flavonoid-enriched plants showed improved antioxidant capacity; however, there is
                                                                                                                                               a complex relationship between antioxidant capacity and flavonoids content, suggest-
       Author(s)    Wu X, Beecher GR, Holden JM, et al.
                                                                                                                                               ing the participation of other compounds in the antioxidant potential of the plants. These
 Journal/Citation   Journal of Agricultural and Food Chemistry. 2004; 52:4026-4037                                                             other compounds are not yet recognized.
    Study Design    Both lipophilic and hydrophilic antioxidant capacities were determined using the oxygen
                    radical absorbance capacity (ORAC(FL)) assay with fluorescein as the fluorescent probe
                    and 2,2’-azobis(2-amidinopropane) dihydrochloride as a peroxyl radical generator on
                    more than 100 different kinds of foods, including fruits, vegetables, nuts, dried fruits,
                    spices, cereals, infant, and other foods. Most of the foods were collected from four dif-
                    ferent regions and during two different seasons in U.S. markets. Total phenolics of each
                    sample were also measured using the Folin-Ciocalteu reagent.
         Results    Hydrophilic ORAC(FL) values (H-ORAC(FL)) ranged from 0.87 to 2,641 micromol of
                    Trolox equivalents (TE)/g among all of the foods, whereas lipophilic ORAC(FL) values
                    (L-ORAC(FL)) ranged from 0.07 to 1611 micromol of TE/g. Generally, L-ORAC(FL) values
                    were <10 percent of the H-ORAC(FL) values, except for a very few samples. Total antioxi-
                    dant capacity was calculated by combining L-ORAC(FL) and H-ORAC(FL). Differences of
                    ORAC(FL) values in fruits and vegetables from different seasons and regions were rela-
                    tively large for some foods but could not be analyzed in detail because of the sampling
                    scheme. Two different processing methods, cooking and peeling, were used on selected
                    foods to evaluate the impact of processing on ORAC(FL).
      Conclusion    The data demonstrated that processing can have significant effects on ORAC(FL). Con-
                    sidering all of the foods analyzed, the relationship between TP and H-ORAC(FL) showed
                    a very weak correlation. Total hydrophilic and lipophilic antioxidant capacity intakes were
                    calculated to be 5,558 and 166 micromol of TE/day, respectively, on the basis of data
                    from the USDA Continuing Survey of Food Intakes by Individuals (1994-1996).


                                                                                                                  44   45
P OTATOES AND G LYC E M I C I NDEX
US P B - FUNDED RESEAR C H :                                                                                                               Title   Another approach to estimating the reliability of glycaemic index
                                                                                                                                      Author(s)    Williams SM
                                                                                                                                Journal/Citation   British Journal of Nutrition. 2008;100:364-372
            Title   Glycemic index of potatoes commonly consumed in North America                                                  Study Design    Incremental area under the blood glucose curve (iAUC) values were determined in 20
       Author(s)    Fernandes G, Velangi A, Wolever TMS                                                                                            healthy individuals on three and four occasions for white bread and glucose, respectively,
                                                                                                                                                   and for mashed potatoes and chickpeas on a single occasion. Reliability of repeated
 Journal/Citation   Journal of the American Dietetic Association. 2005;105:557-562
                                                                                                                                                   measurements of the same food was estimated by intra-class coefficient (ICC), a measure
    Study Design    In study one, subjects (four men and six women) consumed 200 g russet or white pota-                                           having values between 0 and 1, with values closer to 1 indicating better reliability.
                    toes that were either (1) precooked, refrigerated and reheated (precooked) or (2) cooked
                                                                                                                                        Results    The ICC of the iAUC for white bread and glucose were 0.50 and 0.49, respectively. The
                    and consumed immediately (day-cooked). Incremental area under the curve (AUC) was
                                                                                                                                                   mean GI of white bread was 81 with a reliability of 0.27, indicating substantial within-
                    determined. In study two, subjects (11 men and one woman) consumed 50 g white bread
                                                                                                                                                   person variability. The GI of mashed potatoes and chickpeas were 87 and 28, respec-
                    or potatoes (six different varieties and two different cooking methods). GI values were
                                                                                                                                                   tively, with an ICC of 0.02 and 0.40, again indicating substantial within-person variability,
                    calculated. In both studies meals were consumed after a 10-12 hour overnight fast, and
                                                                                                                                                   especially for potatoes.
                    finger-prick capillary-blood glucose was measured before and at intervals for 2 hours
                    after consumption.                                                                                               Conclusion    The unpredictability of individual responses, even if they are the result of day-to-day
                                                                                                                                                   variation, places significant limitations on the clinical usefulness of GI.
         Results    The results of study one indicated that precooked russet potatoes elicited lower AUC
                    than day-cooked (p < 0.05), while precooking had no effect on boiled white potatoes.
                    The results of study two indicated that the GI values of potatoes varied significantly
                    depending on the variety and cooking method used (p = 0.003), ranging from intermedi-
                    ate (boiled red potatoes consumed cold: 56) to moderately high (roasted California white
                    potatoes: 72; baked U.S. russet potatoes: 77) to high (instant mashed potatoes: 88; boiled
                    red potatoes: 89).                                                                                         P OTATOES AND SAT I E T Y/ W E I G H T M ANAG E M EN T
      Conclusion    The GI of potatoes is influenced by variety and method of cooking, and U.S. russet po-
                    tatoes have only a moderately high GI. Individuals wishing to minimize dietary GI can be
                                                                                                                               US P B - FUNDED RESEAR C H :
                    advised to precook potatoes and consume them cold or reheated.

                                                                                                                                           Title   Satiety and glycemic index of potatoes in relation to other carbohydrate test meals
                                                                                                                                      Author(s)    Geliebter A, Lee IC, Abdillahi M, Jones J
P OTATOES AND G LYC E M I C I NDEX
                                                                                                                                Journal/Citation   Submitted for presentation; FASEB April 2008
NON - FUNDED RESEAR C H :                                                                                                          Study Design    After an overnight fast, 12 healthy, normal-weight participants (six male and six female)
                                                                                                                                                   aged 22-30 consumed five different test meals (baked potato, mashed potato, pasta,
                                                                                                                                                   brown rice, white bread) in random order followed by an ad libitum lunch meal (two
            Title   Inter-individual variability and intra-individual reproducibility of GI values for commercial                                  hours after the test meal). All test meals contained 240 calories, 50 grams of available
                    white bread                                                                                                                    carbohydrate and were statistically similar in protein, fat, and fiber content. Appetite
                                                                                                                                                   ratings preceded blood draws at 10 minutes prior to the test meal and then 0, 15, 30, 60,
       Author(s)    Vega Lopez S, Ausman LM, Griffith JL                                                                                           90, and 120 minutes after the test meal. White bread served as the reference food for
 Journal/Citation   Diabetes Care. 2007;30(6):1412-1417                                                                                            determining GI.

    Study Design    Twenty-three healthy adults (aged 20-70 years) completed up to three sets of two                                    Results    There were no significant differences in “hunger” or “fullness” AUC (area under curve)
                    visits. Each pair of visits assessed the glycemic response to 50 grams of available carbo-                                     following the test meals. However, there was a lower “desire to eat” AUC and lower
                    hydrates from commercial white bread and 50 grams of glucose, administered in random                                           “desire to eat” at 15 minutes (p < 0.04) as well as lower nadir values (p = 0.002) follow-
                    order. The mean +/- SE ratio of the area under the curve (AUC) after white bread intake                                        ing the potato meals than the pasta meals. At 120 minutes, “how much food could you
                    by the AUC after glucose intake for the first set of determinations was 78 +/- 15 (n = 23;                                     eat” was lower following baked potato meals than brown rice meals (p = 0.04). However,
                    coefficient of variation [CV] 94 percent).                                                                                     total lunch energy intake did not differ following the test meals and was not correlated
                                                                                                                                                   with “fullness” AUC (r = -0.21). There was no significant correlation between GI of the test
         Results    When using glycemic index values calculated with the subset of participants who com-                                           meals and any of the hunger or appetite ratings.
                    pleted three sets of tests (n = 14), glycemic index values for each of the three sets of de-
                    terminations were 78 +/- 10, 60 +/- 5, and 75 +/- 10, respectively. CVs were 50 percent, 28                      Conclusion    Overall there was no correlation between the GI of the particular side dish and satiety.
                    percent, and 50 percent, respectively. The mean glycemic index value of these three sets                                       With respect to specific foods, the data provide some evidence for greater short-term
                    was 71 +/- 6, with a CV of 30 percent. When an analysis of variance (ANOVA) approach                                           satiety after consuming potatoes, particularly baked potatoes, compared with pasta and
                    was applied to these data, the inter-individual CV was 17.8 percent, and the intra-individu-                                   brown rice. However, these short-term effects on feelings of satiety did not directly trans-
                    al variation was 42.8 percent.                                                                                                 late into differences in subsequent food intake.

      Conclusion    These data suggest that in response to a challenge of white bread relative to glucose,
                    within-individual variability is a greater contributor to overall variability than among-indi-
                    vidual variability. Further understanding of all the sources of variability would be helpful
                    in better defining the utility of glycemic index values.




                                                                                                                     46   47
P OTATOES AND SAT I E T Y/ W E I G H T M ANAG E M EN T                                                                       P OTATOES AND SAT I E T Y/ W E I G H T M ANAG E M EN T
US P B - FUNDED RESEAR C H :                                                                                                 NON - FUNDED RESEAR C H :

            Title   Assessing the Role of Potatoes and Glycemic Index in Body Weight Management and                                      Title   A satiety index of common foods
                    Glucose Tolerance
                                                                                                                                    Author(s)    Holt SH, Miller JC, Petocz P, Farmakalidis E
       Author(s)    Randolph J, Cheema S, Kappagoda CT, Edrisinghe I, Burton-Freeman B.
                                                                                                                              Journal/Citation   European Journal of Clinical Nutrition. 1995;49:675-690
 Journal/Citation   FASEB 2009
                                                                                                                                 Study Design    Two hundred forty calorie servings of 38 foods separated into six food categories (fruits,
    Study Design    Hypothesizing that energy intake control is more important for weight loss than glyce-                                       bakery products, snack foods, carbohydrate-rich foods, protein-rich foods, breakfast
                    mic index, we expect no difference in body weight (BW) changes between low glycemic                                          cereals) were fed to groups of 11-13 subjects. Satiety ratings were obtained every 15 min-
                    index (LGI) vs HGI hypocaloric diets. We also expect metabolic and body composi-                                             utes over 120 minutes, after which subjects were free to eat ad libitum from a standard
                    tional effects to follow weight loss changes vs diet type. In this randomized control trial,                                 range of foods and drinks. A satiety index (SI) score was calculated by dividing the area
                    overweight (BMI 29.0 ± 3.8) adult (40.9 ± 15.5 yrs) men and women participate in 1 of 3                                      under the satiety response curve (AUC) for the test food by the group mean satiety AUC
                    potato-containing dietary interventions for 12 weeks. Two diets require a daily reduc-                                       for white bread and multiplying by 100. Thus, white bread had an SI score of 100 percent,
                    tion of 500 kcals; subjects are counseled to follow diets comprised of LGI (n=30) or HGI                                     and the SI scores of the other foods were expressed as a percentage of white bread.
                    (n=30) foods. The 3rd diet, a control group (CD, n=30), is advised on general healthy
                                                                                                                                      Results    Significant differences in satiety scores were found both between and within food cat-
                    eating patterns. Endpoints compare results from 0 and 12 weeks: BW, body composition
                                                                                                                                                 egories. Of the food groups, fruits had the highest mean satiety score. For individual
                    [via dual-energy x-ray absorptometry (DEXA)], and glucose tolerance [via oral glucose
                                                                                                                                                 foods, boiled potatoes had the highest, which was seven times greater than that of white
                    tolerance test (OGTT)].
                                                                                                                                                 bread. The number of calories consumed during the ad libitum meal correlated negatively
         Results    Preliminary data indicates no significant treatment effect on body weight or composi-                                        with the meat satiety score.
                    tion, glucose tolerance, or insulin response after 12 weeks LGI vs HGI diets. Triglycerides
                                                                                                                                   Conclusion    The results show that isoenergetic servings of different foods differ greatly in their satiat-
                    (TG) after 12 weeks were higher in HGI vs LGI group (110 ± 8.5 mg/dL vs 83.6 ± 9.8 mg/dL,
                                                                                                                                                 ing capacities.
                    p=0.04).
      Conclusion    These data suggest that regular consumption of a HGI diet, even for BW loss, promotes
                    increased TG formation or decreased TG clearance, independent of potato intake.                                      Title   No effect of a diet with a reduced glycaemic index on satiety, energy intake and body
                                                                                                                                                 weight in overweight and obese women
                                                                                                                                     Author(s)   Aston LM, Stokes CS, Jebb SA
            Title   Glycemic Index and Potato Consumption: Effects on Glucose Metabolism and Body Com-                        Journal/Citation   International Journal of Obesity. 2008; 32:160–165
                    position
                                                                                                                                 Study Design    Nineteen overweight/obese women were studied in a randomized crossover intervention
       Author(s)    Randolph J, Kappagoda CT, Edirisinghe I, Burton-Freeman B.                                                                   study for two consecutive 12-week periods. Lower or higher GI versions of key carbohy-
                                                                                                                                                 drate-rich foods (breads, breakfast cereals, rice and pasta/potatoes) were provided to
 Journal/Citation   Obesity Society 2010
                                                                                                                                                 subjects to be incorporated into habitual diets in ad libitum quantities.
    Study Design    The purpose of this study was to examine the effects of glycemic index and potato con-
                                                                                                                                       Results   The results indicated no differences in energy intake, body weight or body composition
                    sumption on weight loss and weight-related effects on glucose metabolism. DESIGN: In a
                                                                                                                                                 between treatments. On laboratory investigation days, there were no differences in sub-
                    12-week, 3 arm, randomized control trial, 86 overweight (BMI 28.8 ± 3.2) men and women
                                                                                                                                                 jective ratings of hunger or fullness, or in energy intake at the snack or lunch meal.
                    (46.4 ± 14.2 yr) were counseled to follow one of three dietary interventions each of which
                    included five to seven servings of potatoes per week: (1) Low GI (LGI) instructed to                           Conclusion    This study provides no evidence to support an effect of a reduced GI diet on satiety, en-
                    consume low GI foods; (2) High GI (HGI) instructed to consume high GI foods and reduce                                       ergy intake or body weight in overweight/obese women. Claims that the GI of a diet may
                    energy intake by 500 kcal/day; (3) Control group: counseled to follow the Dietary Guide-                                     have specific effects on body weight may therefore be misleading.
                    lines and Food Guide Pyramind. Diets were monitored via 3-day food records. Changes
                    in weight, body composition (by DEXA), glucose tolerance (by OGTT), and triglycerides
                    were determined at wks 0 and 12.
         Results    Modest weight loss was observed in all three groups (~2% of initial body weight) with no
                    significant difference in weight loss between the groups. Fasting levels of triglycerides,
                    glucose, insulin and measures of insulin resistance were not different between the groups.
      Conclusion    LGI diets are not superior to HGI diets for weight loss; Potatoes were consumed by all
                    three groups suggesting that the total profile of the diet vs. one food drives weight and
                    metabolic outcomes.




                                                                                                                   48   49
P OTATOES AND SAT I E T Y/ W E I G H T M ANAG E M EN T                                                                       P OTATOES AND P OTASS I U M
NON - FUNDED RESEAR C H :                                                                                                    US P B - FUNDED RESEAR C H :

            Title   Long-term effects of two energy-restricted diets differing in glycemic load on dietary                               Title   The role of potatoes in increasing potassium intake and blood pressure reduction in free-
                    adherence, body composition, and metabolism in CALERIE: a one-year randomized                                                living individuals who select and prepare their own food
                    controlled trial                                                                                                Author(s)    Nowson C, Wattanapenpaiboon N, Margeris C
       Author(s)    Das SK, Gilhooly CH, Golden JK, et al.                                                                    Journal/Citation   Unpublished manuscript (2008)
 Journal/Citation   American Journal of Clinical Nutrition. 2007;85:1023-1030                                                       Summary      This study evaluated the relationship between potato consumption and blood pressure
    Study Design    The 34 subjects were overweight (BMI: 25-30 kg/m2) but otherwise healthy men and                                             (BP) among 91 men and women recruited to participate in a dietary intervention study
                    women aged 24-42 who were part of a larger, multicenter trial known as “CALERIE”                                             designed to examine the effect of various dietary modifications on blood pressure. Usual
                    (Comprehensive Assessment of the Long-term Effects of Restricting Intake of Energy),                                         dietary intake (including consumption of potatoes) was assessed via 24 hour recall.
                    designed to examine the effects of calorie restriction on human health and aging. The                                        Home BP measures were taken daily for two weeks and averaged. The results indicated
                    12-month study was separated into three phases. Phase 1 consisted of a seven-week                                            that total potato intake was positively and significantly correlated with urinary potassium
                    baseline period during which subjects were instructed to maintain a stable weight and                                        excretion. In addition, there was an inverse association of usual potato intake with usual
                    continue eating their usual diet so as to assess baseline energy requirements. Following                                     diastolic BP levels. Linear regression analyses, with an inclusion of confounders (age, gen-
                    Phase 1, subjects were randomly assigned to either a high- or low-GI, calorie-restricted                                     der, BMI and use of anti-hypertensive medications), showed that about 6% and 4% of the
                    diet for 24 weeks. All food was provided to the subjects at 70 percent of individual base-                                   variance in the diastolic BP was explained by total potato and non-fried potato intakes
                    line weight-maintenance energy requirements (i.e., a 30 percent calorie reduction). The                                      respectively. A 100-g/d higher intake of total potato was associated with a 2.6 mm Hg
                    third and final phase of the study consisted of a 24-week calorie-restricted period, during                                  lower diastolic BP and non-fried potato with a 2.5 mm Hg lower diastolic BP.
                    which subjects were instructed to follow the dietary patterns they had in Phase 2 but                          Conclusion    In this study an increase in potato consumption was associated with lower diastolic blood
                    were no longer provided with the foods (i.e., “self-selected food” period).                                                  pressure.
          Results   Both groups reduced their energy intake during the calorie restriction periods, although
                    neither achieved the 30 percent reduction prescribed, and adherence decreased with
                    time (e.g., 21 percent and 28 percent calorie restriction at three months, and 16 percent
                    and 17 percent calorie restriction at six months for high-GL and low-GL diets, respec-                               Title   White Potatoes are Among the Most Affordable Sources of Potassium in the American
                    tively.) Both groups lost weight (approximately 8 percent of initial body weight), and                                       Diet
                    there was no significant difference in weight loss between the groups. In addition, there                       Author(s)    Drewnowski A and Rehm C
                    were no significant differences between the low-GL and high-GL diet groups in terms of
                    body fat percentage, hunger, satiety, or satisfaction with the amount and type of foods                   Journal/Citation   To be presented at FNCE 2011
                    provided.                                                                                                       Summary      The 2010 Dietary Guidelines identified potassium as a shortfall nutrient in the US diet.
      Conclusion    This study provides some of the most convincing evidence yet that diets differing sub-                                       Identifying affordable food sources of this shortfall nutrient is a priority. Analyses were
                    stantially in glycemic load induce comparable long-term weight loss.                                                         undertaken using the USDA Food and Nutrition Database for Dietary Studies (FNDDS
                                                                                                                                                 2.0); the Center for Nutrition Policy and Promotion (CNPP) food prices database; the
                                                                                                                                                 USDA produce prices, and MyPyramid equivalents database. Nutrient composition and
                                                                                                                                                 price data were linked with dietary intakes data from the National Health and Nutrition
                                                                                                                                                 Examination Survey (NHANES 2003-4). Nutrient density of foods was assessed us-
            Title   An 18-month randomized trial of a low glycemic index diet and weight change in                                               ing the Nutrient Rich Foods (NRF) index, based on the food’s content of 9 nutrients to
                    Brazilian women                                                                                                              encourage (protein, fiber, vitamins A, C, E, calcium, iron, magnesium and potassium) and
                                                                                                                                                 3 nutrients to limit (saturated fat, added sugar and sodium). The cost per each addi-
       Author(s)    Sichieri R, Moura AS, Genelhu V, et al.                                                                                      tional 10% daily value (DV) for each of the nutrients to encourage was calculated as well.
 Journal/Citation   American Journal of Clinical Nutrition. 2007 Sep;86(3):707-13                                                                Frequency of vegetables consumption was obtained from NHANES data.
    Study Design    Two hundred and three healthy women (BMI: 23-30 kg/m2) aged 25-45 were randomly                                   Results    The cost per serving of white potatoes, non fried, was approximately half the cost of
                    assigned to a low-GI or high-GI diet with a small energy restriction (approx 300 kcal/d)                                     many vegetables. In the fruit and vegetables groups, white potatoes, carrots, and sweet
                    for 18 months. Only 60 percent of the subjects completed the 18-month study. The differ-                                     potatoes had the highest NRF index values per dollar.. White potatoes were among the
                    ence in glycemic index between the diets was approximately 35-40 units (40 compared                                          lowest-cost sources of potassium.
                    with 79) during all 18 months of follow-up, and the carbohydrate intake from energy                            Conclusion    The merging of federal data sets on nutrient composition, food costs, and dietary intakes
                    remained at approximately 60 percent in both groups.                                                                         can help identify nutritious and affordable foods and provide a useful practice tool for
         Results    The low-GI group had a slightly greater weight loss in the first two months of follow-up                                     dietitians.
                    (-0.72 compared with -0.31 kg), but after 12 months of follow-up, both groups began to
                    regain weight. After 18 months, the weight change was not significantly different (p =
                    0.93) between groups (low GI: -0.41 kg; high GI: -0.26 kg). A greater reduction was ob-
                    served in the low-GI diet group for triacylglycerol (difference = -16.4 mg/dL; p = 0.11) and
                    VLDL cholesterol (difference = -3.7 mg/dL; p = 0.03).
      Conclusion    This study demonstrates that long-term weight changes are not significantly affected by
                    glycemic levels.




                                                                                                                   50   51
p otato e s a n d t h e a m e r ic a n d i e t
US P B - FUNDED RESEAR C H :                                                                                                          Title   Potatoes are not Associated with Obesity or Type II Diabetes when Potential Confounders
                                                                                                                                              are Controlled.
                                                                                                                                 Author(s)    Drewnowski A
            Title   White Potatoes, Non-Fried, Do Not Displace Other Vegetables in Meals Consumed by                       Journal/Citation   Recently completed; Not Yet Submitted for Presentation
                    American Children and Adolescents (14-18 yr)
                                                                                                                              Study Design    Studies that have examined the association between disease states and intakes of certain
       Author(s)    Drewnowski A, Rehm C, Beals K.                                                                                            foods (e.g., potatoes) often do not control for potential confounding variables (e.g., SES,
 Journal/Citation   FASEB 2011                                                                                                                education, diet quality, physical activity). In this study data from two cycles of the Nation-
                                                                                                                                              al Health and Nutrition Examination Survey (NHANES) 2003-2004 and 2005-2006 were
    Study Design    Using data from 4-cycles (2001-08) of the National Health and Nutrition Examination                                       used to evaluate the association between potato (baked, boiled and mashed) consump-
                    Survey (NHANES), we evaluated whether consumption of white potatoes, (baked, roast-                                       tion frequency, BMI and Type II Diabetes. Three models were used to analyze the above
                    ed, or boiled), displaced other vegetables from the meals of children and adolescents                                     listed associations: Model 1 adjusted for age, gender, race/ethnicity and education. Model
                    aged 4-18 y. Approximately 10,600 lunches and 11,500 dinners were characterized by                                        2 adjusted for factors in model 1 as well as diet quality, fried potato consumption and
                    place (at-home or away from home) and by source of food (e.g., store or school cafete-                                    physical activity. Model 3 adjusted for factors in models 1 and 2 along with smoking. The
                    ria). Children and adolescents consuming white potatoes, baked, roasted, or boiled were                                   habitual frequency of potato consumption from the FFQ was broken into four categories:
                    identified using the individual-food record. The median, inter-quartile range and survey-                                 <monthly, 1-3 times per month, 1-2 times per week and greater than 3 times per week. The
                    weighted mean number of other vegetable servings per 1000 calories were estimated for                                     sample consisted of 5,882 adults over the age of 20.
                    each meal.
                                                                                                                                  Results/    After adjustments for demographic variables (model 1) and lifestyle factors (model 2)
         Results    Children whose weekday lunches included non-fried white potatoes consumed a median                          Conclusion    there was no significant association between potato consumption and either obesity or
                    of 0.37 servings of other vegetables at lunch as compared to only 0.19 servings for chil-                                 diabetes. Failure to adequately control for confounding variables may bias associations
                    dren whose lunches did not include potatoes. There was no evidence that white potatoes                                    between selected dietary factors and health status.
                    displaced other vegetables in school lunches. Meals containing potatoes had significantly
                    higher amounts of vitamin C, potassium and fiber per 1000 calories than meals that did
                    not contain potatoes. There were no significant differences in BMIs of children or adoles-
                    cents who consumed potatoes vs those who did not consume potatoes.
      Conclusion    Consumption of white potatoes (non-fried) among children and adolescents is associated
                    with higher vegetable and nutrient intakes and does not promote overweight or obesity.




                                                                                                                 52   53
r e f e r e nc e s




55
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Weight Management and Glucose Tolerance FASEB 2009

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                                                                                                                                                      Meredith Myers
                                                                                                                                                      Email: meredithm@uspotatoes.com
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Am J Clin Nutr. 2007; 86:707-713.
                                                                                                                                                      Mailing Address:
                                                                                                                                                      United States Potato Board
Stushnoff CD, Holm H, Thompson NI, et al. Antioxidant properties of potato cultivars. 91st Annual Meeting of the Potato Association of
America. Idaho Falls, ID. Aug. 12-16, 2007.
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Tucker KL. et al. Potassium, magnesium and fruit and vegetable intakes are associated with greater bone mineral density in elderly                                                                                 Facebook: www.facebook.com/potatoestatersandspuds
men and women. Am J Clin Nutr. 1999; 69:727-736.                                                                                                      Telephone: (303) 369-7783
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United States Department of Agriculture. Agricultural Research Service: “What We Eat in American, NHANES 2001-2002: Usual
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usualintaketables2001-02.pdf. Accessed: August 2011.                                                                                                    Love the recipes you see here?
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US Potato Board. Potato Attitude and Use Study. Final Report. Unpublished report prepared by Ipsos-Insight Marketing Research. June 2003.
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Ppn handbook final

  • 1. P OTATO N U T R I T I O N HANDBOOK
  • 2. Ta b l e o f C o n t e n t s I n t r o d u cti o n Introduction: Peel Back the Truth 1 The United States Potato Board (USPB) was established in 1971 by a group of potato growers to promote the many benefits of eating potatoes. The USPB Potato Nutrition Facts 2 Vitamin C, Potassium and Gluten-Free 2 was one of the first commodity groups to develop and use an FDA-approved Vitamin B6, Fiber and Resistant Starch 4 nutrition label and has long since promoted positive nutrition messages. As a Antioxidants 6 result of these efforts, consumer attitudes toward potatoes remained mostly Glycemic Index 8 Satiety and Weight Management 11 positive for over 30 years. Then, the low-carbohydrate diet craze swept the Type 2 Diabetes 14 nation beginning in the early 2000s and took a toll on the relationship between Potatoes in the American Diet 15 America and its beloved potato, as indicated by a slight, yet noticeable, Potatoes 101 17 decrease in potato consumption. This caused the potato industry to ramp up its History of the Potato 18 consumer marketing efforts, focusing on dispelling the myth that potatoes are How to Buy and Store Potatoes 19 Fresh Potato Types 20 fattening and educating the public about the inherent goodness of America’s Favorite Vegetable. Cooking With Potatoes 23 The Basics 24 How to Bake a Potato 25 In 2004, the USPB began a formal Nutrition This handbook is a compilation of all-things- Perfect Mashed Potatoes and How to Bake Fries 26 Science Program which compiled key potato potato as it relates to nutrition research and more. Potato Salad Possibilities and Grilling With Potatoes 27 research studies and began funding university Beginning with potato nutrition facts and ending Restaurant Chefs Love Potatoes 28 research projects to protect the reputation of the with a monthly calendar of ideas for news features, potato. The USPB positions itself at the forefront newsletters and blog posts, these pages are of potato nutrition research and monitors research brimming with historical potato facts, techniques Potato Story Ideas 31 and trends in the U.S. and overseas that could for cooking the potato in today’s “30-minute meal” A Month-By-Month Calendar of Ideas to Put Potatoes in the News 32 impact potato consumption in America. mentality, and healthy recipes to keep the potato naturally nutritious and delicious. Healthy Potato Recipes 35 In 2007, the USPB adopted an industry-wide Recipes and Photos 36 signature, “Potatoes…Goodness Unearthed®,” to promote the nutritional benefits of the potato. It’s the first unified endeavor by the entire U.S. potato Research Abstracts 43 industry to clearly identify the U.S. potato as a Summary of USPB-Funded and Non-Funded Research 44 nutrition powerhouse. References 55 USPB Contact Information 59 For more information, visit www.potatogoodness.com. 1
  • 3. P e e l B ac k t h e T r u t h : P otato N u t r iti o n Fact s provide one of the most concentrated and potassium intake, the subjects on the LNAHK diet affordable sources of potassium (Table 2). — and OD diets were given a list of potassium rich significantly more than those foods commonly foods and instructed to eat a potato a day. The It’s a surprise for many to discover Gluten-Free associated with being high in potassium results indicated that both the LNAHK and OD that one medium potato (5.3 oz) According to the 2011 USPB Attitudes & Usage (e.g., bananas, oranges, mushrooms, etc.) produced decreases in blood pressure (compared Study, only 19% of Americans rate potatoes as with the skin contains 45 percent of (Drewnowski et al. 2011). Research suggests to the HC diet); however the decrease was excellent for being gluten-free. In fact, potatoes that diets rich in potassium and low in sodium greatest in the LNAHK diet. With the speculation the daily value for vitamin C; as much are 100% gluten-free! According to the National reduce the risk of hypertension and stroke that the blood pressure lowering effects of the or more potassium (620 mg) than Foundation for Celiac Awareness, an estimated (Appel et al. 1997, FDA, Food & Nutrition Board LNAHK and OD diets were due to an increase in either bananas, spinach, or broccoli; 3 million Americans suffer from side effects 2004). Accumulating evidence also suggests dietary potassium as a direct result of including a associated with eating foods that contain gluten. 10 percent of the daily value of B6; that increasing dietary potassium can negate daily potato dish, Nowson and colleagues recently To make it easier for those who suffer from this and trace amounts of thiamin, some of the negative effects of dietary sodium re-examined the data. The results confirmed that disease to find delicious, gluten-free recipes, the on blood pressure (Geleijnse et al. 2003), there was an inverse relationship between potato riboflavin, folate, magnesium, USPB has created a gluten-free recipe collection and reducing sodium along with increasing consumption and blood pressure. Specifically, it phosphorous, iron, and zinc — all for on their website www.potatogoodness.com, which potassium provides greater heart disease was demonstrated that a 100-g/d higher intake of includes more than 80 gluten-free recipes from only 110 calories and no fat (Table 1). protection than intervention alone (Cook et al. potatoes (an average potato is approx. 150 grams) several ethnic cuisines, many of which can be 2009, Nowson et al. 2004). was associated with a 2.6 mm Hg lower diastolic prepared in 30 minutes or less. Table 1: FDA Data for a 5.3 oz Potato with the Skin* blood pressure (Nowson et al. 2008). Table 2: Potassium Content of Selected “High” Potassium Foods* Calories (kcal) 110 % Daily Value Vitamin C Fat (g) 0 – Potatoes provide 27 mg of vitamin C (45 percent Food Source Potassium (mg) Potatoes Lead Potassium Cholesterol (mg) 0 – of the current daily value), which can contribute Potato (1, 5.3 oz) 620 .................. Produce Picks .................. Sodium (mg) 0 – to total daily requirements. This water-soluble Broccoli (1 med stalk) 460 The recommended intake for potassium was Potassium (mg) 620 18% vitamin acts as an antioxidant, stabilizing or recently increased to 4,700 mg from 3,500 Banana (1 med) 450 per day. Potatoes rank highest among the Vitamin C (mg) 27 45% eliminating free radicals, thus helping to prevent 20 top-selling fruits and vegetables Sweet Potato (1 med) 440 Vitamin B6 (mg) 0.2 10% cellular damage. Vitamin C also aids in collagen Potassium content per serving Tomato (1 med) 340 Fiber (g) 2 8% production, a process that helps to maintain Mushrooms (5 med) 300 healthy gums and is important in healing wounds. Orange (1 med) 250 *It should be noted that the FDA label represents a composite of varietals Finally, vitamin C assists with the absorption of Cantaloupe (1/4 med) 240 Potatoes (“market-basket approach”) based on typical U.S. consumption patterns iron and may help support the body’s immune 620 mg (i.e., 70 percent russet, 18 percent white, and 12 percent red). Grapefruit (1/2 med) 160 system (Gropper 2008). Although potatoes do Broccoli 460 mg Bananas not rival the vitamin C content of citrus fruits and *www.fda.gov/food/labelingnutrition 450 mg Based on the FDA label (Table 1), the following peppers, they do contribute significantly to daily claims can be made for the potato: Tomatoes vitamin C requirements. In fact, data from the Given their high potassium content, potatoes may 340 mg • An excellent source (> 20 percent of the DV) most recent Continuing Survey of Food Intakes by contribute to a heart healthy diet. Nowson et al. of vitamin C Individuals (1994-1996) indicates that potatoes (2004) examined the effect on blood pressure of Source: United States Potato Board • A good source (> 10 percent of the DV) rank in the top 5 of dietary sources of vitamin C two different self-selected diets: (1) a low-sodium, of potassium The health benefits of potassium go beyond for Americans (Cotton et al. 2004). high-potassium diet rich in fruit and vegetables • A good source (> 10 percent of the DV) cardiovascular health. Research indicates that (LNAHK) and (2) a high-calcium diet rich in low- of vitamin B6 diets high in potassium-rich fruits and vegetables Potassium fat dairy foods (HC) with a (3) moderate-sodium, • Low (< 140 mg/serving) in sodium may help maintain lean body mass and bone It is estimated that less than 3% of Americans high-potassium, high-calcium DASH-type diet and cholesterol mineral density as we age (Dawson-Hughes et al. are meeting the current adequate intake (AI) high in fruits, vegetables and low-fat dairy foods • Fat-free (< 0.5 g fat/serving) 2008, Tucker et al. 1999). for potassium (4700 mg/d) (USDA). Potatoes (OD) for four weeks. In order to achieve a higher 2 3
  • 4. Vitamin B6 Resistant Starch reductions in blood lipid levels, increases in Table 3: Resistant Starch Content of Various Foods* Potatoes are a good source of vitamin B6, a water Resistant starch is the starch that is ‘resistant’ satiety and potential uses in weight management Food RS (g/100g food) soluble vitamin that is often low in the diets of to enzymatic digestion in the small intestine. (Higgins 2004, Bodinham et al. 2010). certain groups of women (DRIs 1997). Vitamin B6 Resistant starch is found naturally in foods such as Puffed Wheat 6.2 plays important roles in carbohydrate and protein legumes, bananas (especially under-ripe, slightly In fact, the potential health benefits are so White Beans (cooked) 4.2 metabolism. It helps the body make nonessential green bananas), potatoes, and some unprocessed promising that the Joint Food and Agricultural Banana (raw) 4.0 amino acids needed to make various body whole grains. Natural resistant starch is insoluble, Organization of the United Nations/World Health proteins. It is also a cofactor for several enzymes fermented in the large intestine and a prebiotic Organization Expert Consultation on Human Potato Chips 3.5 involved in energy metabolism, and it is required fiber (i.e., it may stimulate the growth of beneficial Nutrition concluded that resistant starch is “…one Lentils (cooked) 3.4 for the synthesis of hemoglobin – an essential bacteria in the colon). Other types of resistant of the major developments in our understanding component of red blood cells (DRIs 1997). starch may be soluble or insoluble, and may or of the importance of carbohydrates for health in Corn Flakes 3.2 may not have prebiotic properties (Higgins 2004). the past twenty years.” (FAO 1998) Potato (cooked & cooled) 3.2 Fiber The amount of resistant starch found in potatoes is Rye Bread 3.2 One medium potato with the skin contributes The physiological effects and potential health highly dependent upon processing and preparation two grams of fiber or eight percent of the daily benefits of resistant starch have been studied in Potato (fried) 2.8 methods. For example, cooking and then cooling value. Dietary fiber is a complex carbohydrate animals and humans for over 30 years (Murphy potatoes leads to nearly a two-fold increase in Chickpeas (cooked) 2.6 and is the part of the plant material that cannot et al. 2008). Resistant starch appears to exert resistant starch—Table 3 (Englyst et al. 1992, Peas 1.9 be digested and absorbed in the bloodstream. beneficial effects within the colon as well as Murphy et al. 2008). Even processed potatoes (e.g., Dietary fiber has been shown to have numerous body wide. Health benefits in the colon include Potato (boiled) 1.3 potato flakes) appear to retain a significant amount health benefits, including improving blood lipid enhanced laxation, extensive fermentation and of resistant starch with the potential to confer Wheat Bread 1.2 levels, regulating blood glucose, and increasing the production of important short chain fatty health benefits. satiety, which may help with weight loss (Food acids and increased synthesis of a variety of Potato (baked) 1.0 and Nutrition Board 2002). “good” bacteria (Murphy et al. 2008, Cummings et al. 1996, Nofrarias et al. 2007) both of which * Adapted from Murphy 2008 are believed to protect the colon from harmful microorganisms and even cancer (Hylla et al. 1998). Systemic effects include improvements in glucose tolerance and insulin sensitivity, 4 5
  • 5. CAROTENOIDS ANTHOCYANINS Antioxidants A number of scientists have developed specific Comprise a large group of compounds produced by plants Are a class of plant pigments that can be classified chemically as both flavonoids and phenolics In addition to vitamins and minerals, potatoes also research programs to examine the antioxidant contain an assortment of phytochemicals with content of different varieties of potatoes with antioxidant potential, most notably carotenoids the ultimate goal of developing new potato Imparts yellow-to-red hues to various plants, including Widely distributed among flowers, fruits, and vegetables fruits, tubers and roots and contribute to every color but green (Hou 2003) and anthocyanins (Brown et al. 2001, 2004). varieties that maximize antioxidant potential. Anthocyanins are found in the greatest quantities Dr. Cecil Stushnoff and his team at Colorado in purple and red potatoes while carotenoids are State University have examined nearly 100 Play a function in plants as accessory pigments, Play several major roles in plants, including attracting photosynthesis and protect against photosensitization in insects for pollination, acting as a UV screen to protect found largely in yellow and red potatoes, although different selections and varieties of potatoes for plants and animals. In humans, carotenoids are thought the plant’s DNA from damage by sunlight, and acting as to have a variety of function including antioxidant activity, feeding deterrents small amounts are also found in white potatoes antioxidant content and free radical scavenging immunoenhancement and perhaps protection against some capacity and have found that pigmented potatoes forms of cancer (DRIs 2000) (Brown et al. 2004). contain a variety of substances with antioxidant Wu and colleagues (2004a) examined total potential (Stushnoff et al. 2007). Potato cultivars antioxidant capacity (TAC) in more than 100 with particularly high phenolic contents include: different foods, including fruits, vegetables, nuts, •Purple Majesty The effects of pigmented potato consumption on Does cooking potatoes impact dried fruits, spices, cereals, and other foods. biomarkers of oxidative stress, inflammation and In addition, the researchers measured total (recently released purple-skinned variety) antioxidant content? immune response were recently studied in a sample •Mountain Rose phenolic content of these foods to evaluate their of healthy adult males who received daily doses What is the impact of cooking and other forms (not yet released red-skinned variety) contribution to total antioxidant capacity. Out (150 grams) of either white, yellow or purple-fleshed of processing on the phenolic content and •Rio Grande of the 42 vegetables that were tested, beans (not widely available russet variety) potatoes daily (Kaspar 2011). The results indicated antioxidant activity of potato varieties? There (including small red, kidney, and pinto) and that consuming pigmented potatoes can reduce is no clear-cut answer as the current data are artichokes ranked highest in total antioxidant Researchers are also focusing on breeding species inflammation and DNA damage as well as modulate conflicting. Results from Dr. Brown’s lab indicate capacity, while russet potatoes ranked fifth, of potatoes that have improved antioxidant immune cell phenotype in healthy adult males. that boiling increases the extractable total coming in ahead of vegetables that are more capacity and have successfully developed potato carotenoids and the accompanying antioxidant commonly known for their antioxidant potential, tubers with increased levels of flavonoids and Dr. Roy Navarre and researchers from Washington values (Brown 2007). On the other hand, data such as broccoli, cabbage, and tomatoes. carotinoids (Lukaszewicz et al. 2004, Brown State University recently began using a technique from Dr. Miller’s lab indicates that boiling is the 2004, Navarre 2007). known as “metabolic profiling.” They examine only cooking method that severely negatively genetic variations in potatoes and then use Potato Nutrition: The potential role of potato antioxidants in this information to maximize their nutritional More than skin deep immune function and disease prevention have potential. In his lab, metabolic profiling is A common misconception is also been studied. For example, Reddivari et being used to screen potatoes for genotypes that all of the potato’s nutrients al. (2007) examined the effects of a purple with elevated amounts of vitamins and are found in the skin. While the potato anthocyanin fraction on prostate phytonutrients. Substantial differences in skin does contain approximately cancer cell proliferation and apoptosis phytonutrients among different genotypes half of the total dietary fiber, the majority (> 50 percent) of the (i.e., cancer cell death) in vitro. The results were observed for some phenolic compounds, nutrients are found within the potato indicated that cancer cell proliferation was including flavonol, differing in concentration itself. As is true for most vegetables, decreased by the anthocyanin fraction, and by well more than tenfold. More modest cooking does impact the bioavailability apoptosis was increased. Current studies are differences were found in folate, with about of certain nutrients, particularly water-soluble focusing on identifying the individual components a threefold difference between high and low vitamins and minerals, and nutrient loss is greatest of the anthocyanin fraction responsible for the folate genotypes. Comparisons have also been when cooking involves water (boiling) and/or induction of apoptosis in prostate cancer cells and made between wild species and cultivars, extended periods of time (baking). To maintain the on developing potato cultivars that over-express and marked differences were found in a most nutrition in a cooked potato, steaming and these bioactive compounds. variety of compounds, including glycoalkaloid microwaving are best. composition (Navarre et al. 2007). 6 7
  • 6. impacts antioxidant content. Microwaving and determination of GI, which severely limits the simple affect its GI. Decreasing the pH of a starch (e.g., baking appear to cause minimal destruction/ classification of a given food as high, medium or by adding acid) can lower the GI; thus, adding reduction in antioxidant content. Dr. Miller low on the GI, as well as the application of the GI for vinegar to potatoes (such as when making hypothesizes that the boiling causes a loss of the purpose of food selection (Franz 2006). First potato salad) will lower the GI of the potatoes. the water-soluble antioxidants in the water. Wu and foremost, it must be emphasized that the GI is Similarly, acetylation or the addition of beta- and colleagues (2004b) found that cooking had not an inherent property of a food but, rather, the cyclodestrin has been shown to decrease the GI a variable effect on the hydrophilic antioxidant metabolic response of an individual to a food (Pi- of potato starch (Raben et al. 1997). capacity of the four different vegetables tested Sunyer 2002). Thus, the GI of a carbohydrate-rich Preparation: Cooking has been shown to exert (russet potato, broccoli, carrots and tomato). food can vary greatly depending on a number of a differential effect on GI of a carbohydrate- Specifically, potatoes and tomatoes had significant factors, including: rich food, particularly one that is high in starch. increases in antioxidant content after cooking, Variety: Different varieties of a given For example, a recent study by Fernandes et al. while carrots had a significant decrease, and carbohydrate-rich food (e.g., short-grain vs. (2005) examined the effect of cooking on the broccoli was unchanged. long-grain rice, linguini pasta vs. rotini pasta, GI of potatoes prepared in a variety of different red potatoes vs. russet potatoes) can produce ways including mashed; baked; reheated; boiled; Glycemic Index significantly different GIs. According to the most boiled and cooled; and fried. The results indicated If low carbohydrate was the diet trend at the start Between-Subject Variability: Research clearly recently published international table of GI values that the GI values of potatoes varied significantly of the decade, then low glycemic index (GI) has shows that individuals can vary significantly (Atkinson et al. 2008), the GIs for potato varieties depending on both the variety and cooking certainly been the trend to round it out. The GI is in their glycemic responses to the same food range from a low of 56 for a boiled Pontiac potato method used, ranging from intermediate (boiled defined as “the incremental area under the blood (Wolever 2003). Nonetheless, in laboratory from Australia to a high of 111 for a baked U.S. red potatoes consumed cold: 56) to moderately glucose response curve of 50 grams available studies, this source of variation is reduced to the Russet Burbank. high (roasted white potatoes: 73; baked russet carbohydrate portion of a test food relative to 50 point where it is no longer statistically significant potatoes: 72). Similarly, Kinnear et al. (2011) grams of a reference food (e.g., glucose or white by expressing an individual’s glycemic response to Origin: Ironically, even for presumably the same investigated the effects of cooking and cooling bread)” (Jenkins et al. 1981). Potatoes have been the food of interest relative to that of a reference variety, the GI value can vary widely depending on the GI of four novel potato varieties and found unfairly criticized for their ranking on the GI. In fact, food (e.g. white bread or glucose). For example, on where it was grown. For example, russet significant variability in the effects. Specifically, there are a number of complexities in the measure Wolever and colleagues (1991) examined the potatoes grown in Australia have a GI ranging cooking and cooling reduced the GI of two potato and methodological weaknesses inherent in the glycemic responses (AUC) and GI (i.e., the AUC from 87-101, placing them in the high category, varieties by 40-50%, while it produced only a whereas russets grown in the U.S. and Canada of the test food expressed relative to white 8-10% reduction in the other two varieties. have GIs ranging from 56-77, placing them in the bread) of three different foods (white bread, rice, more moderate category (Foster-Powell et al. and spaghetti) in 12 subjects with diabetes. The 2009; Fernandes 2005). average coefficient of variation (a representation of the variability in responses between subjects) Processing: Grinding, rolling, pressing, mashing, for the AUC (for the same food) was 45 percent, and even thoroughly chewing a starch-rich whereas for the GI it was only 10 percent. While carbohydrate will disrupt the amylase and/ mathematically correcting for differences in or amylopectin molecules, making them more glycemic responses makes for a nice, consistent available for hydrolysis and thereby increasing GI, it is artificial and masks a very important the GI (Collier & O’Dea 1982, Pi-Sunyer 2002, and practical consideration — individuals differ Wolever et al. 2001). For example, Wolever significantly in their blood glucose responses to and colleagues showed that the GI of a one- the same food. inch cube of potato could increase by almost 25 percent simply by mashing the cube. Chemically modifying a carbohydrate-rich food can also 8 9
  • 7. Within-Subject Variability: Not only Satiety and Weight Management do blood glucose responses to similar Given the ever increasing prevalence of obesity in the U.S. foods differ between individuals, (68 percent of Americans are overweight or obese) (Flegal they can vary significantly in the same person on different occasions. 2010), it is not surprising that weight management is top In fact, the within-subject variation of mind among consumers and health professionals can sometimes be greater than the alike. One of the most highly researched factors believed between-subject variation. Wolever et al. (1985) showed that for repeated to impact weight management is satiety. Satiety is tests of 50 grams of carbohydrate generally defined as the physiological and psychological from glucose or bread, the coefficient experience of “fullness” that comes after eating and/ of variation of AUC was approximately or drinking. A number of factors have been shown to 15 percent in subjects with Type 2 Diabetes, 23-25 percent in nondiabetic influence the experience of satiety, including gastric subjects, and 30 percent in subjects distention, elevations in blood glucose, and alterations with Type 1 Diabetes. Similarly, Vega- in circulating hormones (e.g., increased insulin and Lopez et al. (2006) examined the cholecystokinin and decreased glucagon). The GI of a inter-individual variability and intra- individual reproducibility of GI values food has also been hypothesized to influence satiety, for commercial white bread among 23 healthy Time of Day: The time of day during which despite a paucity of valid research to support the adults (aged 20-70 years) and found that the glycemic response is measured may impact not connection. Due to potatoes’ supposed high GI, they inter-individual coefficient of variation (CV) was only the absolute glycemic response (i.e., the AUC) but also the relative glycemic response (i.e., have been accused of not being satiating and, thus, have 17.8 percent, while the intra-individual CV was 42.8 percent. In a study recently published in the GI) (Gannon et al. 1998; Wolever 1996). For been pegged as fattening. However, available research does the British Journal of Nutrition, Williams (2008) example, Wolever and Bolognesi (1996) compared not support this contention. examined the reliability of the GI among four the glycemic responses to two different breakfast different foods (white bread, glucose, chickpeas cereals under two conditions: after a 12-hour A frequently cited study by Holt and colleagues white bread and multiplying by 100. The results and mashed potatoes) using the intra-class fast and at midday, four hours after consuming (1995) examined the satiating effects of 38 indicated that there were significant differences coefficient (ICC), a measure having values a standard breakfast. The AUCs at midday were commonly eaten foods grouped into six different in satiety scores not only between but also within between zero and one, with values closer to one significantly less than those after the 12-hour fast, categories (fruits, bakery products, cereals, snack food groups. The food that scored highest on the indicating a better reliability and values closer despite the fact that the subjects consumed the foods, protein-rich foods, and carbohydrate-rich satiety index was, in fact, boiled potatoes, with a to zero indicating poor reliability. The ICC for exact same foods. More specifically, the mean foods). Subjects consumed 240 kcal (1,000 kj) score seven times greater than croissants, which white bread, glucose, and chickpeas were 0.50, AUC response to the high-fiber cereal was 50 portions of each food item, and their feelings of had the lowest SI score. The authors also found no 0.49, and 0.28, respectively, while the ICC for percent lower than that of the low-fiber cereal hunger/satiety were assessed every 15 minutes for significant relationships between satiety, plasma mashed potatoes was significantly lower at after the 12-hour fast, while this difference shrank a total of 120 minutes using an equilateral seven- glucose, or glycemic responses among the 38 0.02, indicating a very poor repeatability. It to just 10 percent at midday. point rating scale that ranged from “extremely test foods. However, a negative correlation was bears noting that these studies were all done in For the GI to be considered a useful dietary planning hungry” to “extremely full.” The subjects were then found between insulin responses and ad libitum a laboratory under highly controlled conditions tool, it must have a predictable effect on blood allowed to eat ad libitum from a standard range food intake at 120 minutes, which suggests that (i.e., using 50 grams of a single food at the same glucose; it must not only be valid but reliable. As of foods and drinks. A Satiety Index (SI) score test foods producing a higher insulin response time of day, etc.). The variation would likely be the research described above documents, for many was calculated for each food by dividing the area were associated with less food intake and thus, much greater under less controlled or more “real foods, this is clearly not the case. under the satiety response curve (AUC) for the indirectly, greater satiety. life” conditions. given food by the group mean satiety AUC for 10 11
  • 8. The Holt et al. (1995) study has been criticized The twelve week study was conducted in three differences between the low-GL and high-GL diet for not controlling for macronutrient and water phases. Phase 1 consisted of a seven-week groups in terms of body fat percentage, hunger, content of the test foods (i.e., not selecting foods baseline period during which subjects were satiety, or satisfaction with the amount and type with similar amounts of protein, fat, fiber and water instructed to maintain a stable weight and of foods provided. content). It has been argued that these factors may continue eating their usual diet so as to assess Potatoes have been unjustly singled out as a food have overshadowed the effect of the GI on satiety. baseline energy requirements (using a technique to avoid when attempting to manage body weight In an attempt to address this methodological known as “doubly labeled water,” which is due to their supposedly high GI and GL. A study shortcoming, Dr. Allan Geliebter and colleagues considered the “gold standard” in assessing free- presented at the 2010 Obesity Society meeting (2008) investigated the satiety of common living energy expenditure). Following Phase 1, assessed the role of GI and potatoes in weight carbohydrate-rich side dishes with varying GIs. subjects were randomly assigned to either a high- loss (Randolph, et al. 2010). In a 12-week, 3-arm, Twelve subjects consumed five test meals with or low-GL calorie-restricted diet for 24 weeks. randomized control trial, 86 overweight men and similar calorie and macronutrient contents (baked All food was provided to the subjects at women were randomly assigned to one of three potato, mashed potato, pasta, brown rice, white 70 percent of individual baseline weight- dietary interventions: (1) low GI, calorie reduced bread) in randomized order followed by an ad maintenance energy requirements (i.e., a 30 diet (500 kcal/d); (2) high GI, calorie reduced libitum lunch meal two hours later. Appetite ratings Indeed, a number of recent studies have failed percent calorie reduction). The third and final diet (500 kcal/d); (3) control group (counseled were taken prior to the test meal and at 0, 15, 30, to find a weight loss advantage from low phase of the study consisted of a 24-week to follow basic dietary guidance including the 60, 90, and 120 minutes. Subjects reported a lower GI diets. (Aston et al. 2008, Das et al. 2007, calorie-restricted period, during which subjects Dietary Guidelines for Americans and the Food desire to eat following the potato meals compared Randolph et al. 2010, 2011). For example, Aston were instructed to follow the dietary patterns Guide Pyramid). All three groups were instructed with the pasta meal. Similarly, at 120 minutes, and colleagues (2008) examined the effect of they had in Phase 2 but were no longer provided to consume five-to-seven servings of potatoes the subjects reported being able to eat less food diets differing in GI on satiety and weight loss in with the foods (i.e., “self-selected food” period). per week and were provided with a variety of following the potato meal compared with the overweight women (n=19) over a 12-week period. The results indicated that both groups reduced recipes for potato dishes. Modest weight loss was brown rice meal. Nonetheless, despite differences Lower or higher GI versions of key carbohydrate- their energy intake during the calorie-restriction observed in all three groups (~2% of initial body in some of the appetite ratings, total energy rich foods (breads, breakfast cereals, rice and periods, although neither achieved the 30 percent weight) with no significant difference in weight intake at the subsequent lunch meal did not differ pasta/potatoes) were provided to subjects to reduction prescribed, and adherence decreased loss between the groups. between the test meals and was not correlated be incorporated into habitual diets in ad libitum with time. Both groups lost weight (approximately with fullness. Subjective experience of fullness was quantities. The results indicated no differences in energy intake, body weight, or body composition 8 percent of initial body weight), and there was The results of these studies clearly not significantly correlated to GI. no significant difference in weight loss between between treatments. On laboratory investigation show what nutrition professionals From an obesity perspective, it is important to the groups. In addition, there were no significant days, there were no differences in subjective determine if differences in short-term satiety as have always known: when it comes to ratings of hunger or fullness, or in energy intake a result of different GIs actually have an impact at the snack or lunch meal. weight loss it is calories that count— on body weight regulation. Unfortunately, much i.e., if you consume more calories of the currently existing research examining The effects of calorie-restricted diets (30 percent the impact of GI on weight loss is hampered by calorie reduction) differing in GL on body weight than you expend you will gain weight. methodological shortcomings, including small and body fat losses was examined by Das et Conversely, if you consume fewer sample sizes, inadequate controls, and insufficient al. (2007). Subjects included overweight but otherwise healthy men and women (n-34) who calories than you expend, you will durations. Nonetheless, after a critical examination of the available data, the 2010 Dietary Guidelines were part of a larger, multicenter trial known as lose weight. Advisory Committee concluded that, “Strong and “CALERIE” (Comprehensive Assessment of the consistent evidence shows that glycemic index Long-term Effects of Restricting Intake of Energy), and/or glycemic load are not associated with body designed to examine the effects of calorie weight and do not lead to greater weight loss or restriction on human health and aging. better weight maintenance” (D5-21). 12 13
  • 9. Diabetes Potatoes in the American Diet Largely because of their supposed high glycemic indicated that, after adjusting for potential In early 2011, the Department of Health and Human plate) and places a strong emphasis on fruits index, potatoes have been implicated in the confounding demographic and lifestyle factors, Services and the United States Department of and vegetables by filling half the plate with development of type 2 diabetes and are often one there was no observed association between the Agriculture (USDA) released the 2010 Dietary these two important food groups. Research of the first foods to be eliminated from the diabetic frequency of potato (baked, boiled and mashed) Guidelines for Americans. A strong emphasis indicates that putting potatoes on the plate diet. Nonetheless, existing research examining consumption and the prevalence of type 2 diabetes. was made on reducing calorie consumption and can improve the overall diet quality of both the role of GI in the genesis and/or management increasing physical activity. The other two areas adults and children. Using dietary intake The American Dietetic Association does not of type 2 diabetes is controversial, rendering of strong focus were consuming more “healthy data from the NHANES database, Dr. Adam endorse the elimination of any food or food definitive conclusions of the subject difficult. foods” like fruits and vegetables, as well as Drewnowski and colleagues (Drewnowski et groups, but rather supports a “total diet approach” Indeed, there are equally as many studies showing consuming less sodium, saturated and trans fats, al. 2011, Drewnowski and Rehm 2011) from the where “all foods can fit if consumed in moderation a beneficial role of GI for type 2 diabetes as those added sugars and refined grains. Potatoes fit University of Washington examined the nutrient with the appropriate portions sizes” (Freeland- showing no benefit (van Wouldenbergh 2011, squarely among all the recommendations. intakes and diet quality of adults and children Graves et al. 2007). Likewise, the American Marsh et al. 2011, Mosdol et al. 2007). classified by the Diabetes Association conducted an extensive Overweight and obesity frequency of potato Moreover, many of the studies implicating GI and, review of scientific studies and concluded that, in the U.S. exceeds two- consumption. more specifically potatoes, in the development for people with type 2 diabetes monitoring thirds of the population, The results of type 2 diabetes have been epidemiological in carbohydrate intake, whether by carbohydrate so it’s no surprise the indicated those nature (demonstrating only an association and not counting or experience-based estimation, remains 2010 Dietary Guidelines who consumed causation), have not differentiated between potato a key strategy in achieving glycemic control for Americans also baked, boiled and products (i.e., highly processed potatoes vs. fresh (American Diabetes Association). highlight the importance roasted potatoes potatoes) and/or have not adequately controlled of weight management. had higher intakes Determining how much carbohydrate you need for potential confounding dietary and other As described previously, of potassium and each day depends on many things including how lifestyle factors (e.g., fat intake, fruit and vegetable potatoes can be a part of vitamin C and active you are and what, if any, medicines you take. intake, red meat intake, fiber intake, physical a weight loss program. consumed more activity, socioeconomic status, etc.) (Halton et al. A good place to start is to aim for about 45- Moreover, potatoes also total vegetables in 2006, Drewnowski 2011). 60 grams of carbohydrate at a meal (American provide two of the key a day compared to Diabetes Association). You may need more or less “shortfall” nutrients those who did not Indeed, when these confounding factors are carbohydrate at meals depending on how you identified by the 2010 consume potatoes. controlled, any relationship between potatoes manage your type 2 diabetes. Once you know how Dietary Guidelines and type 2 diabetes seems to disappear. In a much carbohydrate to eat at a meal, choose your Advisory Committee — potassium and fiber recent study Drewnowski (2011) used data from food and the portion size to match. And don’t shy — which are nutrients currently consumed in two cycles of NHANES (2003-4 and 2005-6) away from potatoes; they can make a significant inadequate amounts by Americans. The number to evaluate the association between potato contribution to your daily vitamin and mineral one listed food source for potassium is potatoes, consumption frequency and incidence of type 2 requirements. A 5.3 oz potato, eaten with the skin, with 738 mg for a standard portion. (Note: USDA diabetes. Statistical delivers 45% of the Daily Value for vitamin C, 2 and FDA use different potato portions in their adjustment was grams of fiber and more potassium than a banana databases). made for potential (620 mg). The following potato servings provide confounding To further illustrate the 2010 Dietary Guidelines about 15 grams of carbohydrate: factors including for Americans, the USDA replaced the race/ethnicity, • otato, boiled, 1/2 cup or 1/2 medium (3 oz.) P multicolored pyramid with MyPlate. This icon education, diet • otato, baked with skin, 1/4 large (3 oz.) P provides a visual representation of the food quality, and physical • otato, mashed, 1/2 cup P groups that should make up a meal (i.e., a activity. The results 14 15
  • 10. potato e s 1 0 1
  • 11. Hi s to r y o f HO W to b u y a n d t h e p otato s to r e p otato e s The cultivation of potatoes is believed to date back 10,000 years around Lake How to Select the Best Potatoes Look for clean, smooth, firm-textured potatoes Titicaca (in modern-day Peru and Bolivia), when the first inhabitants of this with no cuts, bruises or discoloration. region began selecting edible forms of wild potato species. However, the earliest farming of the modern potato (Solanum tuberosum) began in about 1400 Store Properly to Keep Potatoes Fresh • tore potatoes in a well-ventilated place, S BC with the emergence of agricultural communities in this and other areas of optimally at a temperature between South America. The hardiness of potatoes rendered them the ideal crop for 45°F and 55°F. the mountainous regions of Peru, where fluctuating temperatures, poor soil • older temperatures (as in a refrigerator) cause C conditions, and thin air made it nearly impossible to harvest wheat or corn. a potato’s starch to convert to sugar, resulting in a sweet taste and discoloration when cooked. Potatoes made their way to Europe in the early 1500s. Spanish conquistadors If you do refrigerate, letting the potato warm invaded South America in search of gold and silver and began carrying the gradually to room temperature before cooking potatoes back to their homeland aboard their ships. The Spanish sailors can reduce the discoloration. appreciated the “tartuffos” (as they were called) for the protection they offered • void areas that reach high temperatures A (beneath the sink or beside large appliances) or from scurvy (later found to be due to their significant vitamin C content). receive too much sunlight (on the countertop near a window). Today, roots and tubers are the third largest carbohydrate food source, representing nearly half of all root crops • erforated plastic bags and paper bags offer P consumed (FAO/WHO report 1998). Potatoes are grown the best environment for extending shelf-life. in all 50 states of the U.S. and in about 125 countries • eep potatoes out of the light. K “Green” Potatoes or Sprouting Potatoes throughout the world, and they continue to be valued for • on’t wash potatoes (or any produce for that D • reen on the skin of a potato is the build-up G their durability and the fact that they are nutrient rich. matter) before storing. Dampness promotes of a chemical called Solanine. It is a natural Potatoes have long held the prominent position of being early spoilage. reaction to the potato being exposed to too America’s favorite vegetable, and are also considered much light. Solanine produces a bitter taste America’s favorite side dish (vs. rice and pasta), according and if eaten in large quantity can cause illness. to the USPB’s annual Attitude & Usage Study. In 2010, • f there is slight greening, cut away the green I 80% of American’s consumed potatoes in-home 3.8 times portions of the potato skin before cooking in the average two-week period, according to National and eating. Eating Trends©, a service of the NPD Group. In October 1995, the potato became the first vegetable to be grown • prouts are a sign that the potato is trying S in space. That collaborative project between the National to grow. Storing potatoes in a cool, dry, Aeronautics and Space Administration (NASA) and the dark location that is well ventilated will University of Wisconsin, Madison was conducted with the reduce sprouting. goal of feeding astronauts on long space voyages and, • ut the sprouts away before cooking or C perhaps, eventually feeding future colonies in space. eating the potato. 18 19
  • 12. F r e s h p otato T Y P ES Yellows This type, well-known throughout Europe and fast gaining popularity in There are hundreds of potato varieties planted around the the U.S., boasts golden skin and golden flesh. One favored use is grilling. world today. The seven main potato types consumers most Its crispy skin enhances the dense and buttery texture of the flesh. often see at the store today are: Grilling brings out this quality best, dazzling the palate with its slightly sweet, caramelized flavor. That naturally smooth and buttery texture also lends itself well to lighter versions of baked or roasted potatoes. Russets Russets are the most widely used potato type in the United States, characterized by a brown, netted skin and white flesh. One favored Purples/Blues use for russets is baking. The delicious result has a light and fluffy Relative newcomers to the produce department, purple potatoes have center, surrounded by a tasty, robust and crispy roasted skin. The a deep purple skin with flesh that ranges from purple to lavender to delicate potato flavor and grainy texture of a baked russet makes almost white. The rich, vibrant color and luscious taste make tossed it the ideal partner for a variety of toppings, as flavor infusion is salads a favored use for this type. The moist, firm flesh retains its so natural to this type. Russets also create light and fluffy mashed shape while adding rich colors to any salad. Because of their mild, yet potatoes and traditional crispy, pan-fried potatoes. distinctly nutty flavor, purple potatoes naturally complement green salad flavors. Purple potatoes are also sensational roasted – or try combining purples with fingerlings or reds to instantly create a colorful Reds side dish bursting with flavor! This variety, once only available in late summer and early fall, is widely known for its rosy red skin and white flesh. One of its favored uses is in soups and stews. Its moist, waxy flesh stays Fingerlings firm throughout the cooking process and the vibrant red skin This category of potatoes encompasses a wide variety of small, slender adds an appealing color to enhance the presentation of any dish. “finger-sized” potatoes, typically ranging from 2 to 4 inches in length. The slightly sweet and always-tender texture also absorbs the These varieties come in a wide range of skin and flesh colors – red, hearty flavors of the stock. In addition to savory soups and stews, orange, purple, yellow and white – and most possess a firm, waxy texture. reds are frequently used to make tender, yet firm potato salad or Pan-frying, one favored use, enhances their robust flavor and showcases creamy mashed potatoes. their wonderful nutty or buttery tastes. Roasting creates a similarly delightful flavor sensation. Even consider fingerlings as a change-of-pace foundation for a truly unique potato salad. Whites This all-purpose potato type has a white flesh and white (sometimes light tan) skin. Mashing is one favored use. These slightly dense Petites and creamy potatoes have a subtly sweet flavor. Their delicate, thin Petites are small, even “bite-sized” potatoes and share the same skins add just the right amount of texture to a mashed potato dish characteristics – color, flavor and texture – as their full-sized cousins. without the need for peeling. Also, try grilling whites to bring out Petites can be found in red, white, yellow, brown and purple. Don’t let a more full-bodied flavor, or use them in soups and stews as they their size fool you, because their flavors are actually more concentrated become tender, yet hold their shape well. and they cook more quickly, which makes potato salads a favored use for these types. Petites also make colorful, delicious and fun roasted potatoes. 20 21
  • 13. Ta b l e o f C o n t e n t s C oo k ing with potato e s 23
  • 14. Meet our p otato e x p e r t Cooking Potatoes • eep in mind, to preserve the abundance of K nutrients in your potato, cook it in its skin. Steam Creating a potato recipe is part art, part science… or microwave your potatoes instead of boiling, as water naturally leaches some of the nutrients. and all Patty. A home economist since 1981, Patty • f you do boil, consider using that water to I has developed and tested nearly all the healthy moisten your mashed potatoes or in soup. • or every taste bud there is a unique and special F potato recipes in the USPB’s database. dish! Visit www.potatogoodness.com to find the potato dish suited for your needs. In 2005 Patty took over Preparing to Cook Leftovers as the Food Editor for •Gently scrub potatoes with a vegetable brush under cool running water. • efrigerate any leftovers within two hours of R Something Extra magazine, The maximum nutrients are preserved when potatoes are cooked serving to prevent food-borne illnesses. Any a struggling quarterly and eaten with the skin on. meal leftovers should be consumed within a publication of the Raley’s few days. supermarket chain. Buoyed • f peeling, use a vegetable peeler or sharp paring knife and keep the I Microwave cooking instructions for baked potatoes in large measure by the peeling very thin, since many of the nutrients are found close to the skin. • he USPB does not recommend freezing cooked T to serve four: Cut a wedge (1/8-inch wide and force of Patty’s creative potatoes at home as they become watery upon 1/2-inch deep) out of four medium (5 to 6-ounce) will, Something Extra, has •Chop or handle potatoes on a clean cutting board and be sure to use reheating. The potato is 80 percent water; and potatoes. Place in a microwave-safe dish. Microwave become something special, proper safety techniques with all ingredients in a given potato dish to when frozen, this water separates from the on HIGH, uncovered, for 10 to 12 minutes depending and she now creates nearly avoid cross contamination with other foods. starch and nutrients. on strength of microwave. Use oven mitts to remove 50 recipes per issue for dish from microwave. the magazine. Additionally, How to Bake a Potato • ometimes potatoes that are cut and uncooked take on a pinkish S Patty tip: Whether it’s part of a larger meal or the Something Extra now or brownish discoloration. It’s due to the carbohydrate in the food It’s the most common potato search culinary centerpiece, everyone loves a potato. Of publishes four times per reacting with oxygen in the air. Potatoes that become discolored are term on the Internet! How do you course, what you top your potato with determines year with a circulation safe to eat and do not how healthy it is for you. So why not substitute your approaching one million need to be thrown out. bake a potato? Let us count the ways! normal toppings with some delicious alternatives. copies per issue, making The color usually Basic cooking instructions for baked potatoes to Consider sprucing up your spuds with: Patty’s recipes more disappears with cooking. serve four: With fork, pierce skin of four medium popular than many national • Broccoli spears and low-fat Cheddar (5 to 6-ounce) potatoes in several places. Bake in cookbook authors. • reserve the color P preheated 400-degree oven 40 to 50 minutes, or • Salsa, nonfat yogurt and cilantro of cut potatoes by until tender when tested with fork. The skin will be Patty is the mom to • Vegetarian chili storing them in cold crispy and the pulp dry and fluffy. Ben and Abbey and lives water, and add lemon • Marinara sauce and parmesan cheese in Folsom, Calif., with her juice or a little If you need to get dinner on the table in minutes, try husband Vince. Her potato • Wasabi paste vinegar. Limit water baking potatoes in the microwave. The key to great tips and ideas are woven • Bacon bits soaking to two hours microwave baked potatoes is cutting a thin wedge, throughout this section. • Grilled veggies to retain water- lengthwise, approximately 1/8-inch wide and 1/2- soluble vitamins. inch deep. This is done so the steam can fully escape • Healthy buttery spread and sea salt from the potato, resulting in a dry and fluffy pulp. 24 25
  • 15. How to Make Perfect Mashed Potatoes How to Bake Fries Potato Salad Possibilities Grilling With Potatoes What else do we get asked? How to Grandma’s potato salad is a cherished Grill, barbecue, cookout – no matter Retain all the healthy goodness make perfect mashed potatoes, of recipe. But if you’re looking for a new what you call it, nothing beats out- of the potato’s nutritious profile course! With skins or without? Russets, side dish the whole family will love, try door cooking, and not just during the while creating a family favorite by Yukon Golds, these 20 twists on classic potato salad. warm summer months. Potatoes are baking potato wedges in the oven reds, or whites? Creamy Potato Salad with Chives and Gherkins the second most popular vegetable with vegetable oil and Italian herb It’s the great Jicama and Baby Potato Salad to grill, according to the Hearth, Pa- seasoning. Serve with a fresh salsa potato debate tio and Barbecue Association. They for healthy dipping. Loaded Baked Potato Salad and everyone are the perfect accompaniment to all Roasted Fingerling Potato Salad with seems to have a Basic cooking instructions for baked fries to serve meats, and no matter what the spice, Lemon & Thyme four: Heat oven to 450 degrees. Slice 3 medium personal favorite. Potato Salad with Pomegranate and they are the ideal canvas for a variety potatoes (5 to 6 ounces each) lengthwise 3/4-inch Avocado Dressing of flavor. By using a microwave to par- thick, then cut each slice into 3/4-inch long sticks. Basic cooking instructions for mashed potatoes to Place in large bowl. Drizzle with 1 tablespoon Cajun Potato Salad cook your potatoes, actual cook time serve four: Leave skin on or peel three medium (5 to 6-ounce) potatoes. Cut into 1-inch chunks. canola or other vegetable oil and sprinkle with Beet and Purple Potato Salad is reduced dramatically. 1 teaspoon dried Italian herb seasoning and 1/4 Place potato pieces in medium pot and pour over Grilled Pesto Potato Salad teaspoon salt (or to taste); toss to coat evenly. enough water (or reduced-sodium broth) to cover. Add grilled potatoes before mixing in your salad for Arrange potato pieces in a single layer on Lightened Fingerling Potato Salad with Set pan over high heat and bring to a boil. Boil 10 a unique twist on a summer-time staple (see Grilled nonstick baking sheet or baking sheet coated with Caramelized Onion, Bacon and Blue Cheese minutes, or until tender. Drain, then shake potatoes Pesto Potato Salad recipe on page 34). For a patio vegetable cooking spray. Bake 20 to 25 minutes Truffled Potato Salad with Garlic over low heat 1 minute to dry. Mash with potato party, serve potato wedges from the grill, and pass until potatoes are golden brown, turning once Roasted Mushrooms masher or fork. around flavorful dipping sauces (see Potato Dippers after 15 minutes. Serve immediately. Mexican Potato Salad with a Trio of Sauces on page 36). Encourage kids Microwave cooking instructions for mashed potatoes Patty tip: Mash together rosemary, salt and Potato Salad with Mackerel and Water Cress to play with their food by serving up kabobs— to serve four: Place four medium (5 to 6-ounce) pepper in a small everyone’s favorite (see Grilled Potato Kabobs with whole potatoes (do not poke) into microwave-safe Tzatziki Potato Salad bowl with the Lemon-Herb Drizzle on page 33). dish. Cover dish. (If covering dish with plastic wrap, German Potato Salad with a Kick back of a spoon; poke small hole in plastic.) Microwave on HIGH for 10 sprinkle over Roasted Potato and Radish Salad to 12 minutes depending on strength of microwave. cooked potatoes Use oven mitts to remove dish from microwave; Minted Avocado Potato Salad and toss well to carefully remove cover and mash well. coat. Healthy and Indian Potato Samosa Salad Patty tip: My favorite way to prepare mashed delicious fries are Baked Potato with Pineapple Salad potatoes is in the microwave. Not only does it quick, easy and Southwestern Potato Salad save time and the extra mess, I find the potatoes full of flavor! preserve the most moisture with this technique. Potato Salad with Mozzarella and Tomato To keep the potatoes healthy, use a healthy spread, fat-free plain yogurt or low-fat milk. Try Above recipes available at stirring in fresh spinach, salsa, low-fat sour cream Don’t be afraid to use the www.potatogoodness.com/recipes and low-fat cheddar or sautéed onions, carrots microwave for speeding up all and zucchini for additional flavor. your potato recipes. 26 27
  • 16. R e s tau r a n t c h e f s lov e p otato e s On the Menu Year after year, potatoes remain Potatoes are showing up in surprising places on American menus; they’re topping salads, the best-selling side dish in taking over for meat and adding flavor wow in restaurants from coast-to-coast: foodservice. They’re familiar and • Chain restaurant Chevy’s Fresh Mex is serving satisfying, easy to eat and easy a Mesquite-Grilled Steak and Potato Salad to love. Even the simplest side of with chipotle roasted potatoes on hearts of romaine and baby greens. creamy mashed or crispy roasted • Mimi’s Café is serving Salmon Provence Salad potatoes has the power to with mixed greens, feta, cucumber, artichokes upstage any entrée paired with it. and red potatoes. Potatoes in Restaurants: The Facts Chefs continue to find innovative • Pizza Luce, with six locations in Minnesota, Potato sides on the menu increased four percent serves two popular pizzas topped with potato preparations that please over the course of 2010. In fact, 1,440 new potato potatoes: The Baked Potato Pizza is topped mentions were added to chain restaurant menus. the palates of customers from with potatoes, broccoli and fresh tomatoes and the Garlic Mashed Potato Pizza is paired coast-to-coast. Here are some • Three of the top 10 side dishes at chain with feta cheese. restaurants are potato-based. hot, new potato trends happening • Pokez in San Diego offers potatoes in place of meat in almost all of their entrees including in restaurants. • French fries, baked potatoes and mashed potatoes continued to be the most popular enchiladas, tacos, flautas and quesadillas. potato items. Focusing on Side Dishes • Seasoned, garlic and white cheddar continued Side dishes are the top culinary trend for 2011 the country like to dominate the top potato side dish flavors. according to Flavor & the Menu. This leading in Café Gibraltar Cajun, chile and parmesan cheese were also trade reports that the top culinary trend for in Half Moon popular side dish flavors. 2011 is “Sides Take the Lead”. As America’s Bay, California favorite side dish, potatoes are one side that’s where Chef Jose • The top four potato preparations were fried, already a center-stage favorite. The magazine Luis Ugalde French-cut, mashed and baked. says, “Inspired by flavor-discerning and health- serves braised conscious public, along with year-round acces- potatoes with • Crispy, Golden and Homestyle were the top sibility to top-quality produce, chefs are giving his calamari and marketing claims used on menus to describe veggies the attention typically reserved for as a key flavor potato side dishes. protein.” The magazine recommends applying in his lamb stew. center of the plate cooking methods like roast- Braised potatoes also appear as a hash served • The “Trans-Fat-Free” claim continued to be the ing and charring to vegetable sides. We’re see- at Angéle Restaurant in downtown Napa. most widely used nutritional claim describing ing this idea pop up in hot restaurants across potatoes on the menu. Source: Mintel Menu Insights 28 29
  • 18. P otato s to r y i d e a s May July Grill, barbecue, cookout – no matter what you call it, There’s no need to heat up your kitchen during the nothing beats outdoor cooking in the warm summer dog-days of summer. Next time you’re invited to a January March months. The potato is not only a family favorite, summer potluck, try Cookout Potatoes, a delicious This year, resolve to skip the fad diets and focus Perhaps the potato but is also the second most popular vegetable to grill-top “au gratin” sure to be a hit served on real nutrition. Discover the healthy potato and is America’s Favorite cook on the outdoor grill, according to the Hearth, alongside any meat. The bacon and bell pepper the nutrition packed Vegetable because so Patio and Barbecue Association. This summer, treat add great color and texture, but the minimal prep, inside. With just 110 many Americans claim BBQ party attendees with the USPB’s Grilled Potato and “to go” container might be the best part. calories and no fat in Irish blood. According Kabobs with Lemon-Herb Drizzle. a medium-size potato, to History.com, there Consider this: spuds are a nutritious are 34.7 million U.S. Cinco de Mayo is a great excuse to celebrate Potatoes come in and flavorful way to start residents who claim Irish ancestry - almost nine with papas (Spanish for “potatoes”)! Potatoes red, white and blue. the New Year. times the population of Ireland itself! Irish or not, have long since been a Call it serendipity or, everyone loves potatoes, so consider serving the staple in Latino cooking, perhaps, patriotic Please your guests’ palettes with a healthy and USPB’s healthy but traditional Colcannon Chowder so spruce up your fiesta planters, but put these trendy potato recipe for your New Year’s Eve on St. Patrick’s Day. spread with Potato tubers together into gathering. The USPB’s recipe for Potato Dippers Nachos or individual a vibrantly-colored Red, White and Blue Potato with a Trio of Dipping Sauces will amaze guests Peel back the truth during National Nutrition Month helpings of Mexican Salad and you’re guaranteed to add festivity to when they learn that these delicious fries are not and discover a seriously healthy vegetable – one Chicken Potato Soup. Fourth of July gatherings. only naturally nutritious, but the dipping sauces medium-size potato has just 110 calories, is fat-free, are low-fat, too! provides 45 percent of your daily value of vitamin C June August and, when eaten with the skin, has more potassium The USPB boasts a wide range of potato salad Summer savings tip: February than a banana! recipes with everything from Spicy Roasted Healthy eating and It’s no coincidence that February is Potato Lovers’ April Potato Salad to a budget cutting can go Month and American Heart Month. Did you know Whether you’re Caesar Potato Salad hand-in-hand. Contrary potassium can reduce your risk for heart disease? attending an Easter that incorporates to popular belief, you What many Americans don’t realize is that potatoes Brunch gathering or fingerling potatoes. don’t have to sacrifice are a good source of potassium. Consuming hosting your own, our Each of these nutrition when eating more potassium can help reduce the risk of high Potato and Egg Bake recipes is as healthy on a budget. Pound blood pressure. So show your heart a little love by recipe is a sure-fire hit as it is convenient for pound, potatoes are one of the best values in incorporating potatoes into your diet. that everyone will love. Packed with vegetables, and delicious. the produce department. Averaging 25 cents per Amaze football fans and it’s easy to make ahead of time. Consider doubling serving, you can’t afford NOT to include potatoes June is National Fruit and Vegetables Month, and foodies alike by serving the recipe because we can guarantee guests will in your diet. the potato just so happens to be America’s Favorite traditional snacks with a be looking for seconds! Vegetable. Celebrate with a different potato dish What’s your potato IQ? Contact the USPB for healthy twist. The USPB’s The USPB’s makeover series of classic potato every day of the month – or at least once a week! a potato nutrition quiz to celebrate the back to recipes for Cheesy Potato recipes, including mashed and baked, as well With potato recipes that are perfect for breakfast, school season. Find out if you’ve got a PhD in Skins with Sun-Dried as fries, casseroles, soups and salads, will have lunch and dinner, the USPB has plenty of vegetarian Potatoes, Bachelor of Taters, need to hit the books Tomatoes will leave your families tricked into believing that mom slaved recipes ideal for increasing your family’s veggie and eat potatoes as a study snack, or if you’re a party guests happy even in the kitchen for hours to make something so consumption – and kids won’t turn up their noses at Tater Tot and should go back to preschool. if their team doesn’t win the big game! Guests won’t delicious. Contrary to popular belief, potatoes these spuds! even realize they’re saving on calories and fat as they enjoy these satisfying game day snacks. can be quick and healthy, providing a side dish or main course in under 20 minutes. 32 33
  • 19. September November Cool weather = comfort food cravings. But those Give thanks to cravings don’t have to mean extra calories. Potatoes are the ultimate comfort food and there America’s Favorite Vegetable! An h e althy are many ways to keep them naturally nutritious astounding 104 million potato r e cip e s and delicious. Try the USPB’s Potato Tomato Soup medium-size (5.3 for a recipe that warms the body and the soul. ounce) potatoes are consumed on Thanksgiving Day, according to Meat and potatoes is The NPD Group’s National Eating Trends© data. so yesterday. Chicken From Browned Butter with Butternut Squash and potatoes are the Mashed Potatoes to White Chocolate Mashed new perfect pairing. Potatoes, the USPB is the #1 resource for all of Celebrate National your Thanksgiving potato needs and inspiration. Chicken Month with this budget-friendly Cook once, eat twice. Leftovers are common during dynamic duo. Try the USPB’s Mediterranean the holidays but you don’t have to eat the same Lemon Chicken and Potato Packets on the grill or meal over and over. Serve a Tex Mex Shepherd’s in the oven. Pie using leftover turkey and mashed potatoes – so good it’s great to serve to lingering company, too! October Celebrate potato December harvest morning, noon ‘Tis the season for or night with the USPB’s indulging, but save Vegetaters. Served breaking the bank with a simple egg white and busting the omelet, the potatoes waistline for special are accompanied holiday parties and by broccoli florets and red and green peppers celebrations on for an added dose of vitamin C. One serving of the weekends. The perfect weeknight meal is this dish provides a whopping 92 percent of the Pennywise Potato Turkey Wraps – they’re good recommended daily value for vitamin C! for the wallet and the waistline. Bonus: the recipe represents all sections of the food pyramid! There’s nothing scary about potato nutrition! Potatoes fit any holiday occasion. Need a festive Potatoes are a great appetizer that’s gorgeous, delicious and healthy canvas for a Halloween to boot? Red Potato and Cucumber Bites are night dinner to get a party show-stopper. For Hanukkah menu the little gremlins out planning, try Lightened-Up Latkes for a healthy the door satiated and twist on a holiday classic. satisfied. The USPB’s Recipes highlighted above can be found on pages Pork and Potato Verde is the perfect one-pot 36 - 42 or at www.potatogoodness.com/recipes. wonder to kick off a spooktacular evening. 34 35
  • 20. Cheesy Potato Skins Colcannon Chowder Grilled Potato Kabobs with with Sundried Tomatoes Makes 4 main-dish servings (about 6 cups) Lemon-Herb Drizzle Makes 16 stuffed potato skins Makes 4 to 6 servings 1 1/3 pounds (4 medium) russet potatoes, 4 medium russet potatoes (about 1 1/2 pounds) peeled and cut into 3/4-inch chunks Potato Kabobs 1/4 cup fat free sour cream 1 (14 ounce) can nonfat, reduced-sodium 1 pound russet potatoes 2 ounces shredded Parmesan cheese chicken broth 1 (12 ounce) package precooked chicken sausage, 2 ounces shredded Mozzarella cheese 1 cup water sliced 1/4-inch thick on the diagonal 1/3 cup finely chopped sun-dried tomatoes Salt 2 ears fresh corn, cut into 1-inch pieces 1/4 cup sliced green onion tops 2 tablespoons canola oil 2 bell peppers (any color), cubed 2 tablespoons chopped fresh parsley 3 cups coarsely chopped green cabbage 1 zucchini, sliced 1/4-inch thick on the diagonal Pepper, to taste 3/4 cup finely chopped onion 8 ounces smoked chicken or turkey sausage, sliced 1/4-inch thick Lemon-Herb Drizzle Preheat oven to 375 degrees. Bake potatoes 1 medium carrot, shredded 1/4 cup extra virgin olive oil 50 minutes, or until tender. Let cool. Cut each 1/2 cup 1 percent milk (about) 3 cloves garlic, minced potato in half. With a spoon, scoop out pulp Pepper, to taste 2 tablespoons chopped fresh herbs (such as basil, leaving 1/4-inch of potato in each half. Cut each rosemary, marjoram and sage) half to form quarters. Season with salt and 1/2 teaspoon sea salt, or to taste pepper. Bake potato quarters for 15 minutes. In 3-quart saucepan, 1 fresh lemon juice (This will crisp them so that they can be picked cover potatoes with Cookout Potatoes Freshly ground pepper to taste up easily.) broth and water; add Makes 6 to 8 servings 1 teaspoon salt. Bring Heat olive oil in a small Mash 1 cup potato pulp with a potato masher to boil over high heat; Nonstick cooking spray saucepan until very (save remaining pulp for a later use). Stir in the reduce heat, cover and 1 medium onion, halved and thinly sliced hot; remove from heat sour cream, cheeses, tomatoes, green onions and cook until potatoes are 1 1/2 pounds Yukon Gold potatoes, very thinly sliced and stir in garlic. Let parsley. Mixture will be sticky and hold together. tender, 12 to 15 minutes. 1 1/3 cups shredded low-fat sharp Cheddar cheese cool, then stir in herbs, With your hands, divide the mixture evenly Set aside. 1/3 cup real bacon bits salt, lemon juice and between the potato skins, pressing the mixture 1/3 cup chopped bell pepper (any color) pepper; set aside. Place into the skins. Sprinkle with fresh ground black Meanwhile, heat oil 1/2 teaspoon garlic salt potatoes in a medium- pepper and bake for 15 minutes. Serve warm. in 10-inch nonstick skillet over medium-high size microwave-safe bowl heat; add cabbage and onion. Sauté 10 minutes, Nutritional analysis per piece: 70 calories, 1.5g fat, 1g saturated fat, and cover with a lid or tossing occasionally. Add sausage; continue to 0g trans fat, 5mg cholesterol, 75mg sodium, 244mg potassium, 11g Spray a 9 x 9 x 2-inch foil pan liberally with plastic wrap. Note: If using plastic wrap, make sure carbohydrate, 1g fiber, 0g sugar: 4g protein, 4% DV vitamin A, 10% sauté, about 10 minutes, tossing occasionally, until nonstick cooking spray. Place half the onions, plastic wrap is not touching any ingredients and DV vitamin C, 8% DV calcium, 4% DV iron. vegetables and sausage begin to brown. Add potatoes, cheese, bacon bits, bell pepper and poke one small hole in cover to vent. Microwave carrot; set aside. garlic salt in pan. Repeat layers. Cover tightly with on high for 10 to 12 minutes or until potatoes are With slotted spoon, remove about 3/4 cup potato foil and grill over medium heat for 1 hour, rotating tender (cooking time may vary depending on pieces and add to skillet. In electric blender, blend pan occasionally to avoid hot spots. microwave). Use oven mitts to carefully remove remaining potatoes and liquid until smooth, being from microwave. When cool enough to handle, careful to hold blender lid down with kitchen towel; Nutritional analysis per serving: 140 calories, 2.5g fat, 1.5g saturated cut into large chunks. Thread potatoes, sausage fat, 0g trans fat, 10mg cholesterol, 370mg sodium, 720mg potassium: return to saucepan. Add contents of skillet; mix and vegetables onto skewers. Grill over medium- 20g carbohydrate, 1g fiber, 1g sugar, 10g protein, 2% DV vitamin A, in enough milk for consistency desired. Heat to 45% DV vitamin C, 10% DV calcium, 6% DV iron. high heat for about 10 minutes, turning frequently simmering. Season with salt and pepper. and brushing with a little of the herb mixture during the last few minutes of cooking. Remove Nutritional analysis per serving: 320 calories, 13g fat, 2.5g saturated Love the recipes you see here? from grill and place on a platter; drizzle with remaining herb mixture. fat, 0g trans fat, 40mg cholesterol, 780mg sodium, 1023mg potassium, 54g carbohydrate, 6g fiber, 8g sugar, 14g protein, 60% DV Sign up at www.potatogoodness.com vitamin A, 80% DV vitamin C, 15% DV calcium, 15% DV iron. to receive a potato recipe via email Nuturitional analysis per serving: 340 calories, 18g fat, 3.5g saturated fat, 0g trans fat, 55mg cholesterol, 680mg sodium, 682mg every week. Forward the email and potassium, 32g carbohydrates, 4g fiber, 6g sugar, 15g protein, 25% DV vitamin A, 200% DV vitamin C, 10% DV calcium, 15% DV iron. encourage others to sign up too! 36 37
  • 21. Grilled Pesto Potato Salad Lightened Up Latkes Pork and Potato Verde Makes 8 servings Makes 4 servings Makes 4 servings 3 pounds medium-size red potatoes 2 1/2 cups shredded, unpeeled russet potatoes 1 tablespoon vegetable oil Olive oil cooking spray about 1 pound) 1 1/2 pounds pork tenderloin, cut into 1-inch cubes 1/3 cup white or golden balsamic vinegar 1/2 cup grated onion 1 (16 ounce) jar salsa verde 1/4 cup extra virgin olive oil 1/3 cup peeled shredded carrot 1 (4 ounce) can diced green chiles 1/2 teaspoon sea salt 1/3 cup flour 1 cup reduced-sodium chicken broth 3 cloves garlic, minced 2 tablespoons snipped fresh chives 1 teaspoon Mexican seasoning Freshly ground pepper to taste 1 teaspoon kosher salt (such as McCormick) 1/3 cup shredded Parmesan cheese 1/4 teaspoon freshly ground pepper 1 pound russet potatoes, peeled and cubed 1/4 cup finely minced fresh basil 1 egg + 1 egg white 2 green onions, sliced 1/4 cup toasted pine nuts (optional) 2 tablespoons vegetable oil, divided 1 cup rinsed and drained black beans Place potatoes in a large microwave-safe bowl; Scrub potatoes and coarsely grate. Immediately Heat oil in a large saucepan; add pork and brown cover with lid or plastic wrap. Note: If using plastic place in a bowl of ice water to keep potatoes from on all sides. Add salsa, chiles, broth and seasoning wrap, make sure plastic wrap is not touching any discoloring; let stand for 5 minutes. Meanwhile, to pan. Bring to a boil, reduce heat and simmer, ingredients and poke one small hole in cover place the onion, carrot, flour, chives, salt, pepper covered, for 30 minutes. Add potatoes; cook to vent. Microwave on high for 10 to 12 minutes and eggs in a medium bowl and stir well. Drain the for 30 minutes more or until pork is very tender. or until potatoes are tender (cooking time may potatoes and squeeze out moisture; stir into egg Mediterranean Lemon Chicken Uncover; add green onions and beans and cook for vary depending on microwave). Use oven mitts mixture. Heat 1 tablespoon oil in a large non-stick and Potato Packets about 5 minutes more or until sauce has thickened. to carefully skillet over medium-high heat until very hot. Spoon Makes 4 servings Nutritional analysis per serving: 560 calories, 15g fat, 4g saturated fat, remove from about 1/4 cup of potato mixture for each pancake 0g trans fat, 160mg cholesterol, 1300mg sodium, 41g carbohydrates, microwave. into skillet, cooking four at a time. Cook for 3 to 1 1/2 pounds boneless skinless chicken breasts, 6g fiber, 6g sugar, 1465mg potassium, 62g protein, 4% DV vitamin A, When cool 4 minutes per side, flattening with the back of a cut into 1-inch cubes 45% DV vitamin C, 6% DV calcium, 30% DV iron. enough to spatula and cooking until golden brown and crisp 1 pound Yukon Gold potatoes, cut into handle, cut on both sides. Drain on paper towels. Repeat with 3/4-inch cubes potatoes in remaining oil and potatoes. Serve immediately 1 medium onion, coarsely chopped halves or with chunky applesauce and low-fat sour cream. 1/2 cup reduced-fat Greek or olive oil vinaigrette quarters and 1/3 cup quartered Kalamata olives (optional) Nutritional analysis per serving: 220 calories, 8g fat, 1g saturated fat, spray liberally 1/4 cup lemon juice 0g trans fat, 55mg cholesterol, 520mg sodium, 562mg potassium, with olive oil 31g carbohydrate, 2g fiber, 2g sugar, 6g protein, 35% DV vitamin A, 1 teaspoon dry oregano spray. Grill 40% DV vitamin C, 40% DV calcium, 10% DV iron. 1 teaspoon garlic salt over high 1/2 cup chopped tomato heat for 5 to 7 minutes, Mix all ingredients except tomatoes in a large bowl. turning occasionally, until grill lines are apparent. Place equal amounts onto four large squares of Remove from grill and let cool. Cut into bite-sized heavy-duty foil. Fold in top and sides of each to pieces and place in a large bowl. Whisk together enclose filling, leaving room for air to circulate. Grill vinegar, oil, salt and garlic; pour over potatoes and over medium heat for about 25 to 30 minutes or toss lightly to coat. Season with pepper, then cover until chicken is cooked through and potatoes are and refrigerate until ready to serve. Just before soft. Carefully open packets and sprinkle equal serving, toss with Parmesan cheese and basil, then amounts of tomato over each. sprinkle with pine nuts. Nutritional analysis per serving: 210 calories, 8g fat, 1.5g saturated Note: Packets may also be baked at 400 degrees for 30 fat, 0g trans fat, 5mg cholesterol, 230mg sodium, 784mg potassium, minutes instead of grilling. 29g carbohydrate, 3g fiber, 2g sugar, 5g protein, 2% DV vitamin A, 60% DV vitamin C, 8% DV calcium, 8% DV iron. Nutritional analysis per serving: 250 calories, 10g fat, 1.5g saturated fat, 0g trans fat, 15mg cholesterol, 1030mg sodium, 32g carbohydrates, 2g fiber, 5g sugar, 6g, protein, 118mg potassium, 6% DV vitamin A, 60% DV vitamin C, 2% DV calcium, 8% DV iron. 38 39
  • 22. Caramelized Onion and Chive Potato Nachos Dipping Sauce Makes 4 servings 1 tablespoon extra virgin olive oil 1 1/2 pounds russet potatoes 1 medium onion, quartered and thinly sliced 1 1/2 tablespoons vegetable oil 1 cup fat-free Greek yogurt 1/2 teaspoon garlic salt 1/4 cup sliced chives or green onion tops 1 teaspoon Mexican seasoning blend 2 tablespoons fresh rosemary leaves 1 cup Mexican blend shredded Sea salt and freshly ground pepper to taste reduced fat cheese 1/4 cup rinsed and drained canned black beans Heat oil in a medium skillet. Add onion and cook 1/4 cup diced tomatoes over low heat for 20 minutes stirring frequently; 1/4 cup sliced black olives let cool. Puree onion and yogurt in a blender or 1/4 cup sliced green onions small food processor until smooth. Add chives 3 tablespoons canned diced green chiles and rosemary and pulse on and off until finely Salsa, guacamole and sour cream (optional) chopped. Season to taste with salt and pepper. Preheat oven to 425 degrees. Scrub potatoes and Potato Dippers with a cut into 1/2-inch thick wedges. Place potatoes Trio of Sauces Avocado Cilantro into a medium size bowl with the oil, garlic salt and Mexican seasoning. Stir well to coat potatoes Makes 6 to 8 servings Dipping Sauce with oil and seasonings. Transfer to a large baking Potato & Egg Bake 2 pounds russet potatoes, cut into wedges sheet and spread into a single layer. Bake for 25 to Makes 6 servings 3/4 cup fat-free Greek yogurt 1 tablespoon olive oil 30 minutes, stirring several times, until crisp and 1 ripe avocado, peeled and pitted Sea salt, to taste golden brown. Top with cheese, beans, tomatoes, 3/4 pound red potatoes, cut into 1/2-inch cubes 2 cloves garlic Sauces (see below) olives, onions and chiles. Bake for 5 minutes more 1/2 cup each: chopped red bell pepper and zucchini 1/4 cup lightly packed fresh cilantro leaves to melt cheese. Serve with salsa, guacamole and 1/4 cup sliced green onions 1/2 tablespoon lime juice Place potato wedges in a large bowl with olive oil; sour cream. 2 cups coarsely shredded 2 percent or Sea salt and freshly ground pepper to taste toss well to coat. Grill over medium-high heat for Nutritional analysis per serving: 280 calories, 12g fat, 3.5g saturated regular sharp Cheddar cheese 10 minutes, turning once or twice, until cooked Puree yogurt, avocado and garlic in a blender or fat, 0g trans fat, 20mg cholesterol, 560mg sodium, 796mg 8 eggs potassium, 36g carbohydrate, 2g fiber, 2g sugar, 13g protein, 8% DV through and grill marks appear. Season with salt small food processor until smooth. Add cilantro 3 tablespoons flour vitamin A, 10% DV vitamin C, 30% DV calcium, 10% DV iron. and serve immediately with dippers. and lime juice and pulse on and off until finely 3/4 teaspoon baking powder Nutrients per serving (potatoes only): 140 calories, 2g fat, 0g chopped. Season to taste with salt and pepper. 1 teaspoon garlic salt saturated fat, 0g trans fat, 0mg cholesterol, 95mg sodium, 713mg 1 cup low-fat cottage cheese potassium, 28g carbohydrate, 3g fiber, 1g sugar, 3g protein, 0% DV vitamin A, 30% DV vitamin C, 2% DV calcium, 8% DV iron. Preheat oven to 350 degrees and spray an 11 X Serve these potato dippers as a 7-inch casserole dish with nonstick cooking spray. Spread potatoes, pepper, zucchini, green onions Red Pepper Basil side dish or a fun appetizer at your and cheddar cheese into prepared pan. Whisk Dipping Sauce next gathering! together eggs, flour, baking powder and garlic salt. Stir in cottage cheese and pour into prepared dish; 1/2 cup fat-free Greek yogurt The dipping sauces all use fat-free stir lightly. Bake for 45 minutes or until eggs are 1/2 cup roasted red peppers, drained and patted dry puffed, golden brown and set in the center. 2 cloves garlic Greek yogurt as a base and can be 1/4 cup each: sliced green onions and basil leaves Nutritional analysis per serving: 310 calories, 14g fat, 7g saturated fat, Sea salt and freshly ground pepper to taste made up to 24 hours ahead and stored 0g trans fat, 315mg cholesterol, 800mg sodium, 21g carbohydrate, 2g fiber, 4g sugar, 379mg potassium, 23g protein, 25% DV vitamin A, tightly covered in the refrigerator. 60% DV vitamin C, 40% DV calcium, 10% DV iron. Puree yogurt, peppers and garlic in a blender or small food processor. Add onions and basil and pulse on and off until finely chopped. Season to taste with salt and pepper. 40 41
  • 23. Red Potato and Cucumber Bites Makes 10 to 12 appetizer servings r e s e arch 2/3 pound (about 12) small red potatoes, uniform in size abstracts 1/2 teaspoon salt 6 ounces reduced-fat cream cheese, at room temperature 3 ounces sliced smoked salmon, finely chopped 2 teaspoons fresh lemon juice 1/4 teaspoon coarsely ground black pepper 12 slices (1/2 inch thick) English cucumber Snipped chives, dried dill weed and/or Potato Tomato Soup drained capers, for garnish Makes 4 to 6 servings Halve potatoes; cut and discard a very thin slice 1 tablespoon extra virgin olive oil from skin side of each half. In 2-quart saucepan, 1 medium onion, chopped cover potatoes with water; add salt. Bring to 2 stalks celery, sliced boil over high heat, reduce heat, cover and cook 1 pound russet potatoes, peeled and cubed until tender, 10 to 15 minutes, depending on size 1 (32 ounce) container chicken broth of potatoes. Drain; cool to room temperature. 1 (28 ounce) can crushed tomatoes Meanwhile, in small bowl, mix cheese, salmon, 2 teaspoons dry basil lemon juice and pepper to blend thoroughly. With Garlic salt and freshly ground pepper to taste small spoon, mound salmon mixture onto potato 3 cups lightly packed fresh spinach, halves and cucumber slices, dividing equally (1 to coarsely chopped 1 ½ teaspoons each). Arrange on serving plate and add your choice of garnishes. Heat oil in a large saucepan; add onion and cook over medium heat for 5 minutes to lightly brown. If not served immediately, these can be prepared Stir in celery, potatoes, broth and tomatoes. several hours in advance; cover and refrigerate. Bring to a boil; reduce heat and simmer, covered, For best flavor, return to room temperature just for 30 minutes. Let cool slightly, then purée before serving. in a blender or food processor until smooth. Nutritional Analysis Per Serving (1/12 of batch): 70 calories, 3.5g fat, Pour back into saucepan and stir in basil, garlic 2g saturated fat, 0g trans fat, 10mg cholesterol, 218mg sodium, 5g salt and pepper; cook for 5 minutes. Check carbohydrate, 1g fiber, 1g sugar, 3g protein, 146mg potassium, 4% DV vitamin A, 10% DV vitamin C, 10% DV calcium, 2% DV iron. seasonings, then add spinach and cook a minute or two more to wilt spinach. Serving suggestion: Add a small swirl of basil pesto and a sprinkle of Parmesan cheese to each bowl for added Italian flavor. Nutritional analysis per serving: 180 calories, 4g fat, .5g saturated fat, 0g trans fat, 5mg cholesterol, 1070mg sodium, 33g carbohydrate, 6g fiber, 3g sugar, 7g protein, 184mg potassium, 80% DV vitamin A, 80% DV vitamin C, 15% DV calcium, 25% DV iron. 42
  • 24. P otato e s a n d A n ti ox i da n t s US P B - F u n d e d R e s e a r c h : Title Anthocyanin fraction from potato extracts is cytotoxic to prostate cancer cells through activation of caspase-dependent and caspase-independent pathways Author(s) Reddivari L, Vanamala J, Chintharlapalli S, et al. Title Effects of Potato Consumption on Oxidative Stress, Inflammatory Damage and Immune Journal/Citation Carcinogenesis. 2007; 28:2227-2235 Response in Humans Study Design This study investigated the effects of specialty potato phenolics and their fractions Author(s) Kaspar KL, Park JS, Brown CR, Mathison BD, Navarre DA, Chew BP. on LNCaP (androgen dependent) and PC-3 (androgen independent) prostate cancer Journal/Citation Journal of Nutrition. 2011;141(1):108-11 cells. Phenolic extracts from four specialty potato cultivars — CO112F2-2, PATX99P32-2, ATTX98462-3, and ATTX98491-3 — and organic acid, phenolic acid and anthocyanin Study Design The purpose of this study was to assess the effects of pigmented potato consumption on fractions were used. oxidative stress biomarkers, inflammation and immune response in healthy adult males. Free living healthy male participants (18-40 yr; n=12/group) were given 150 g of cooked Results CO112F2-2 cultivar extracts and their AF at 5 mg chlorogenic acid eq/ml were more active white- (WP), yellow- (YP) or purple-flesh potatoes (PP) once a day for 6 wk in a double- and inhibited cell proliferation and increased the cyclin-dependent kinase inhibitor p27 blinded study. Blood was collected at baseline and wk 6 to analyze total antioxidant levels in both LNCaP and PC-3 cells. Potato extract and anthocyanin fractions induced capacity, DNA damage (8-OHdG), protein oxidation, lipid peroxidation, C-reactive protein apoptosis in both the cells; however, the effects were cell-context dependent. (CRP), inflammatory cytokines, lymphoproliferation, NK cytotoxicity and phenotypes. Conclusion This is the first report showing that the cytotoxic activities of potato extract/anthocyanin Potatoes were analyzed for total antioxidant capacity, phenolic acids, anthocyanins and fractions in cancer cells were due to activation of caspase-independent apoptosis. carotenoids. Results Participants fed YP and PP had lower (P < 0.08) plasma IL-6 compared to those fed WP. A concurrent decrease (P < 0.08) in CRP concentration was observed in the PP group. Lower concentrations of 8-OHdG were observed in subjects fed either YP (P < 0.03) or PP (P < 0.08) compared to those fed WP. Total Tc cells were lower while B cells were Title Antioxidant capacity manipulation in transgenic potato tuber by changes in phenolic higher in PP compared to the WP group (P < 0.05). Compared to WP, YP had high con- compounds content centrations of phenolic acids (P < 0.002) and carotenoids (P < 0.001), while purple pota- toes had high concentrations of phenolic acids (P < 0.002) and anthocyanins (P < 0.001). Author(s) Lukaszewicz M, Matysiak-Kata I, Skala J, et al. Conclusion Pigmented potato consumption reduced inflammation and DNA damage, and modulates Journal/Citation Journal of Agricultural and Food Chemistry. 2004; 52:1526-1533 immune cell phenotype in healthy adult males. Study Design The purpose of this study was to generate potato tubers with increased levels of fla- vonoids and thus modified antioxidant capacities. To accomplish this, the vector carry- ing multigene construct was prepared, and several transgenic plants were generated, all over-expressing key biosynthesis pathway enzymes. P otato e s a n d A n ti ox i da n t s Results The single-gene over-expression or simultaneous expression of genes encoding chalcone synthase (CHS), chalcone isomerase (CHI), and dihydroflavonol reductase (DFR) resulted Non-funded research: in a significant increase of measured phenolic acids and anthocyanins. The increase in phenolic compounds synthesis is accompanied by decreases in starch and glucose levels in transgenic plants. Title Lipophilic and hydrophilic antioxidant capacities of common foods in the United States Conclusion The flavonoid-enriched plants showed improved antioxidant capacity; however, there is a complex relationship between antioxidant capacity and flavonoids content, suggest- Author(s) Wu X, Beecher GR, Holden JM, et al. ing the participation of other compounds in the antioxidant potential of the plants. These Journal/Citation Journal of Agricultural and Food Chemistry. 2004; 52:4026-4037 other compounds are not yet recognized. Study Design Both lipophilic and hydrophilic antioxidant capacities were determined using the oxygen radical absorbance capacity (ORAC(FL)) assay with fluorescein as the fluorescent probe and 2,2’-azobis(2-amidinopropane) dihydrochloride as a peroxyl radical generator on more than 100 different kinds of foods, including fruits, vegetables, nuts, dried fruits, spices, cereals, infant, and other foods. Most of the foods were collected from four dif- ferent regions and during two different seasons in U.S. markets. Total phenolics of each sample were also measured using the Folin-Ciocalteu reagent. Results Hydrophilic ORAC(FL) values (H-ORAC(FL)) ranged from 0.87 to 2,641 micromol of Trolox equivalents (TE)/g among all of the foods, whereas lipophilic ORAC(FL) values (L-ORAC(FL)) ranged from 0.07 to 1611 micromol of TE/g. Generally, L-ORAC(FL) values were <10 percent of the H-ORAC(FL) values, except for a very few samples. Total antioxi- dant capacity was calculated by combining L-ORAC(FL) and H-ORAC(FL). Differences of ORAC(FL) values in fruits and vegetables from different seasons and regions were rela- tively large for some foods but could not be analyzed in detail because of the sampling scheme. Two different processing methods, cooking and peeling, were used on selected foods to evaluate the impact of processing on ORAC(FL). Conclusion The data demonstrated that processing can have significant effects on ORAC(FL). Con- sidering all of the foods analyzed, the relationship between TP and H-ORAC(FL) showed a very weak correlation. Total hydrophilic and lipophilic antioxidant capacity intakes were calculated to be 5,558 and 166 micromol of TE/day, respectively, on the basis of data from the USDA Continuing Survey of Food Intakes by Individuals (1994-1996). 44 45
  • 25. P OTATOES AND G LYC E M I C I NDEX US P B - FUNDED RESEAR C H : Title Another approach to estimating the reliability of glycaemic index Author(s) Williams SM Journal/Citation British Journal of Nutrition. 2008;100:364-372 Title Glycemic index of potatoes commonly consumed in North America Study Design Incremental area under the blood glucose curve (iAUC) values were determined in 20 Author(s) Fernandes G, Velangi A, Wolever TMS healthy individuals on three and four occasions for white bread and glucose, respectively, and for mashed potatoes and chickpeas on a single occasion. Reliability of repeated Journal/Citation Journal of the American Dietetic Association. 2005;105:557-562 measurements of the same food was estimated by intra-class coefficient (ICC), a measure Study Design In study one, subjects (four men and six women) consumed 200 g russet or white pota- having values between 0 and 1, with values closer to 1 indicating better reliability. toes that were either (1) precooked, refrigerated and reheated (precooked) or (2) cooked Results The ICC of the iAUC for white bread and glucose were 0.50 and 0.49, respectively. The and consumed immediately (day-cooked). Incremental area under the curve (AUC) was mean GI of white bread was 81 with a reliability of 0.27, indicating substantial within- determined. In study two, subjects (11 men and one woman) consumed 50 g white bread person variability. The GI of mashed potatoes and chickpeas were 87 and 28, respec- or potatoes (six different varieties and two different cooking methods). GI values were tively, with an ICC of 0.02 and 0.40, again indicating substantial within-person variability, calculated. In both studies meals were consumed after a 10-12 hour overnight fast, and especially for potatoes. finger-prick capillary-blood glucose was measured before and at intervals for 2 hours after consumption. Conclusion The unpredictability of individual responses, even if they are the result of day-to-day variation, places significant limitations on the clinical usefulness of GI. Results The results of study one indicated that precooked russet potatoes elicited lower AUC than day-cooked (p < 0.05), while precooking had no effect on boiled white potatoes. The results of study two indicated that the GI values of potatoes varied significantly depending on the variety and cooking method used (p = 0.003), ranging from intermedi- ate (boiled red potatoes consumed cold: 56) to moderately high (roasted California white potatoes: 72; baked U.S. russet potatoes: 77) to high (instant mashed potatoes: 88; boiled red potatoes: 89). P OTATOES AND SAT I E T Y/ W E I G H T M ANAG E M EN T Conclusion The GI of potatoes is influenced by variety and method of cooking, and U.S. russet po- tatoes have only a moderately high GI. Individuals wishing to minimize dietary GI can be US P B - FUNDED RESEAR C H : advised to precook potatoes and consume them cold or reheated. Title Satiety and glycemic index of potatoes in relation to other carbohydrate test meals Author(s) Geliebter A, Lee IC, Abdillahi M, Jones J P OTATOES AND G LYC E M I C I NDEX Journal/Citation Submitted for presentation; FASEB April 2008 NON - FUNDED RESEAR C H : Study Design After an overnight fast, 12 healthy, normal-weight participants (six male and six female) aged 22-30 consumed five different test meals (baked potato, mashed potato, pasta, brown rice, white bread) in random order followed by an ad libitum lunch meal (two Title Inter-individual variability and intra-individual reproducibility of GI values for commercial hours after the test meal). All test meals contained 240 calories, 50 grams of available white bread carbohydrate and were statistically similar in protein, fat, and fiber content. Appetite ratings preceded blood draws at 10 minutes prior to the test meal and then 0, 15, 30, 60, Author(s) Vega Lopez S, Ausman LM, Griffith JL 90, and 120 minutes after the test meal. White bread served as the reference food for Journal/Citation Diabetes Care. 2007;30(6):1412-1417 determining GI. Study Design Twenty-three healthy adults (aged 20-70 years) completed up to three sets of two Results There were no significant differences in “hunger” or “fullness” AUC (area under curve) visits. Each pair of visits assessed the glycemic response to 50 grams of available carbo- following the test meals. However, there was a lower “desire to eat” AUC and lower hydrates from commercial white bread and 50 grams of glucose, administered in random “desire to eat” at 15 minutes (p < 0.04) as well as lower nadir values (p = 0.002) follow- order. The mean +/- SE ratio of the area under the curve (AUC) after white bread intake ing the potato meals than the pasta meals. At 120 minutes, “how much food could you by the AUC after glucose intake for the first set of determinations was 78 +/- 15 (n = 23; eat” was lower following baked potato meals than brown rice meals (p = 0.04). However, coefficient of variation [CV] 94 percent). total lunch energy intake did not differ following the test meals and was not correlated with “fullness” AUC (r = -0.21). There was no significant correlation between GI of the test Results When using glycemic index values calculated with the subset of participants who com- meals and any of the hunger or appetite ratings. pleted three sets of tests (n = 14), glycemic index values for each of the three sets of de- terminations were 78 +/- 10, 60 +/- 5, and 75 +/- 10, respectively. CVs were 50 percent, 28 Conclusion Overall there was no correlation between the GI of the particular side dish and satiety. percent, and 50 percent, respectively. The mean glycemic index value of these three sets With respect to specific foods, the data provide some evidence for greater short-term was 71 +/- 6, with a CV of 30 percent. When an analysis of variance (ANOVA) approach satiety after consuming potatoes, particularly baked potatoes, compared with pasta and was applied to these data, the inter-individual CV was 17.8 percent, and the intra-individu- brown rice. However, these short-term effects on feelings of satiety did not directly trans- al variation was 42.8 percent. late into differences in subsequent food intake. Conclusion These data suggest that in response to a challenge of white bread relative to glucose, within-individual variability is a greater contributor to overall variability than among-indi- vidual variability. Further understanding of all the sources of variability would be helpful in better defining the utility of glycemic index values. 46 47
  • 26. P OTATOES AND SAT I E T Y/ W E I G H T M ANAG E M EN T P OTATOES AND SAT I E T Y/ W E I G H T M ANAG E M EN T US P B - FUNDED RESEAR C H : NON - FUNDED RESEAR C H : Title Assessing the Role of Potatoes and Glycemic Index in Body Weight Management and Title A satiety index of common foods Glucose Tolerance Author(s) Holt SH, Miller JC, Petocz P, Farmakalidis E Author(s) Randolph J, Cheema S, Kappagoda CT, Edrisinghe I, Burton-Freeman B. Journal/Citation European Journal of Clinical Nutrition. 1995;49:675-690 Journal/Citation FASEB 2009 Study Design Two hundred forty calorie servings of 38 foods separated into six food categories (fruits, Study Design Hypothesizing that energy intake control is more important for weight loss than glyce- bakery products, snack foods, carbohydrate-rich foods, protein-rich foods, breakfast mic index, we expect no difference in body weight (BW) changes between low glycemic cereals) were fed to groups of 11-13 subjects. Satiety ratings were obtained every 15 min- index (LGI) vs HGI hypocaloric diets. We also expect metabolic and body composi- utes over 120 minutes, after which subjects were free to eat ad libitum from a standard tional effects to follow weight loss changes vs diet type. In this randomized control trial, range of foods and drinks. A satiety index (SI) score was calculated by dividing the area overweight (BMI 29.0 ± 3.8) adult (40.9 ± 15.5 yrs) men and women participate in 1 of 3 under the satiety response curve (AUC) for the test food by the group mean satiety AUC potato-containing dietary interventions for 12 weeks. Two diets require a daily reduc- for white bread and multiplying by 100. Thus, white bread had an SI score of 100 percent, tion of 500 kcals; subjects are counseled to follow diets comprised of LGI (n=30) or HGI and the SI scores of the other foods were expressed as a percentage of white bread. (n=30) foods. The 3rd diet, a control group (CD, n=30), is advised on general healthy Results Significant differences in satiety scores were found both between and within food cat- eating patterns. Endpoints compare results from 0 and 12 weeks: BW, body composition egories. Of the food groups, fruits had the highest mean satiety score. For individual [via dual-energy x-ray absorptometry (DEXA)], and glucose tolerance [via oral glucose foods, boiled potatoes had the highest, which was seven times greater than that of white tolerance test (OGTT)]. bread. The number of calories consumed during the ad libitum meal correlated negatively Results Preliminary data indicates no significant treatment effect on body weight or composi- with the meat satiety score. tion, glucose tolerance, or insulin response after 12 weeks LGI vs HGI diets. Triglycerides Conclusion The results show that isoenergetic servings of different foods differ greatly in their satiat- (TG) after 12 weeks were higher in HGI vs LGI group (110 ± 8.5 mg/dL vs 83.6 ± 9.8 mg/dL, ing capacities. p=0.04). Conclusion These data suggest that regular consumption of a HGI diet, even for BW loss, promotes increased TG formation or decreased TG clearance, independent of potato intake. Title No effect of a diet with a reduced glycaemic index on satiety, energy intake and body weight in overweight and obese women Author(s) Aston LM, Stokes CS, Jebb SA Title Glycemic Index and Potato Consumption: Effects on Glucose Metabolism and Body Com- Journal/Citation International Journal of Obesity. 2008; 32:160–165 position Study Design Nineteen overweight/obese women were studied in a randomized crossover intervention Author(s) Randolph J, Kappagoda CT, Edirisinghe I, Burton-Freeman B. study for two consecutive 12-week periods. Lower or higher GI versions of key carbohy- drate-rich foods (breads, breakfast cereals, rice and pasta/potatoes) were provided to Journal/Citation Obesity Society 2010 subjects to be incorporated into habitual diets in ad libitum quantities. Study Design The purpose of this study was to examine the effects of glycemic index and potato con- Results The results indicated no differences in energy intake, body weight or body composition sumption on weight loss and weight-related effects on glucose metabolism. DESIGN: In a between treatments. On laboratory investigation days, there were no differences in sub- 12-week, 3 arm, randomized control trial, 86 overweight (BMI 28.8 ± 3.2) men and women jective ratings of hunger or fullness, or in energy intake at the snack or lunch meal. (46.4 ± 14.2 yr) were counseled to follow one of three dietary interventions each of which included five to seven servings of potatoes per week: (1) Low GI (LGI) instructed to Conclusion This study provides no evidence to support an effect of a reduced GI diet on satiety, en- consume low GI foods; (2) High GI (HGI) instructed to consume high GI foods and reduce ergy intake or body weight in overweight/obese women. Claims that the GI of a diet may energy intake by 500 kcal/day; (3) Control group: counseled to follow the Dietary Guide- have specific effects on body weight may therefore be misleading. lines and Food Guide Pyramind. Diets were monitored via 3-day food records. Changes in weight, body composition (by DEXA), glucose tolerance (by OGTT), and triglycerides were determined at wks 0 and 12. Results Modest weight loss was observed in all three groups (~2% of initial body weight) with no significant difference in weight loss between the groups. Fasting levels of triglycerides, glucose, insulin and measures of insulin resistance were not different between the groups. Conclusion LGI diets are not superior to HGI diets for weight loss; Potatoes were consumed by all three groups suggesting that the total profile of the diet vs. one food drives weight and metabolic outcomes. 48 49
  • 27. P OTATOES AND SAT I E T Y/ W E I G H T M ANAG E M EN T P OTATOES AND P OTASS I U M NON - FUNDED RESEAR C H : US P B - FUNDED RESEAR C H : Title Long-term effects of two energy-restricted diets differing in glycemic load on dietary Title The role of potatoes in increasing potassium intake and blood pressure reduction in free- adherence, body composition, and metabolism in CALERIE: a one-year randomized living individuals who select and prepare their own food controlled trial Author(s) Nowson C, Wattanapenpaiboon N, Margeris C Author(s) Das SK, Gilhooly CH, Golden JK, et al. Journal/Citation Unpublished manuscript (2008) Journal/Citation American Journal of Clinical Nutrition. 2007;85:1023-1030 Summary This study evaluated the relationship between potato consumption and blood pressure Study Design The 34 subjects were overweight (BMI: 25-30 kg/m2) but otherwise healthy men and (BP) among 91 men and women recruited to participate in a dietary intervention study women aged 24-42 who were part of a larger, multicenter trial known as “CALERIE” designed to examine the effect of various dietary modifications on blood pressure. Usual (Comprehensive Assessment of the Long-term Effects of Restricting Intake of Energy), dietary intake (including consumption of potatoes) was assessed via 24 hour recall. designed to examine the effects of calorie restriction on human health and aging. The Home BP measures were taken daily for two weeks and averaged. The results indicated 12-month study was separated into three phases. Phase 1 consisted of a seven-week that total potato intake was positively and significantly correlated with urinary potassium baseline period during which subjects were instructed to maintain a stable weight and excretion. In addition, there was an inverse association of usual potato intake with usual continue eating their usual diet so as to assess baseline energy requirements. Following diastolic BP levels. Linear regression analyses, with an inclusion of confounders (age, gen- Phase 1, subjects were randomly assigned to either a high- or low-GI, calorie-restricted der, BMI and use of anti-hypertensive medications), showed that about 6% and 4% of the diet for 24 weeks. All food was provided to the subjects at 70 percent of individual base- variance in the diastolic BP was explained by total potato and non-fried potato intakes line weight-maintenance energy requirements (i.e., a 30 percent calorie reduction). The respectively. A 100-g/d higher intake of total potato was associated with a 2.6 mm Hg third and final phase of the study consisted of a 24-week calorie-restricted period, during lower diastolic BP and non-fried potato with a 2.5 mm Hg lower diastolic BP. which subjects were instructed to follow the dietary patterns they had in Phase 2 but Conclusion In this study an increase in potato consumption was associated with lower diastolic blood were no longer provided with the foods (i.e., “self-selected food” period). pressure. Results Both groups reduced their energy intake during the calorie restriction periods, although neither achieved the 30 percent reduction prescribed, and adherence decreased with time (e.g., 21 percent and 28 percent calorie restriction at three months, and 16 percent and 17 percent calorie restriction at six months for high-GL and low-GL diets, respec- Title White Potatoes are Among the Most Affordable Sources of Potassium in the American tively.) Both groups lost weight (approximately 8 percent of initial body weight), and Diet there was no significant difference in weight loss between the groups. In addition, there Author(s) Drewnowski A and Rehm C were no significant differences between the low-GL and high-GL diet groups in terms of body fat percentage, hunger, satiety, or satisfaction with the amount and type of foods Journal/Citation To be presented at FNCE 2011 provided. Summary The 2010 Dietary Guidelines identified potassium as a shortfall nutrient in the US diet. Conclusion This study provides some of the most convincing evidence yet that diets differing sub- Identifying affordable food sources of this shortfall nutrient is a priority. Analyses were stantially in glycemic load induce comparable long-term weight loss. undertaken using the USDA Food and Nutrition Database for Dietary Studies (FNDDS 2.0); the Center for Nutrition Policy and Promotion (CNPP) food prices database; the USDA produce prices, and MyPyramid equivalents database. Nutrient composition and price data were linked with dietary intakes data from the National Health and Nutrition Examination Survey (NHANES 2003-4). Nutrient density of foods was assessed us- Title An 18-month randomized trial of a low glycemic index diet and weight change in ing the Nutrient Rich Foods (NRF) index, based on the food’s content of 9 nutrients to Brazilian women encourage (protein, fiber, vitamins A, C, E, calcium, iron, magnesium and potassium) and 3 nutrients to limit (saturated fat, added sugar and sodium). The cost per each addi- Author(s) Sichieri R, Moura AS, Genelhu V, et al. tional 10% daily value (DV) for each of the nutrients to encourage was calculated as well. Journal/Citation American Journal of Clinical Nutrition. 2007 Sep;86(3):707-13 Frequency of vegetables consumption was obtained from NHANES data. Study Design Two hundred and three healthy women (BMI: 23-30 kg/m2) aged 25-45 were randomly Results The cost per serving of white potatoes, non fried, was approximately half the cost of assigned to a low-GI or high-GI diet with a small energy restriction (approx 300 kcal/d) many vegetables. In the fruit and vegetables groups, white potatoes, carrots, and sweet for 18 months. Only 60 percent of the subjects completed the 18-month study. The differ- potatoes had the highest NRF index values per dollar.. White potatoes were among the ence in glycemic index between the diets was approximately 35-40 units (40 compared lowest-cost sources of potassium. with 79) during all 18 months of follow-up, and the carbohydrate intake from energy Conclusion The merging of federal data sets on nutrient composition, food costs, and dietary intakes remained at approximately 60 percent in both groups. can help identify nutritious and affordable foods and provide a useful practice tool for Results The low-GI group had a slightly greater weight loss in the first two months of follow-up dietitians. (-0.72 compared with -0.31 kg), but after 12 months of follow-up, both groups began to regain weight. After 18 months, the weight change was not significantly different (p = 0.93) between groups (low GI: -0.41 kg; high GI: -0.26 kg). A greater reduction was ob- served in the low-GI diet group for triacylglycerol (difference = -16.4 mg/dL; p = 0.11) and VLDL cholesterol (difference = -3.7 mg/dL; p = 0.03). Conclusion This study demonstrates that long-term weight changes are not significantly affected by glycemic levels. 50 51
  • 28. p otato e s a n d t h e a m e r ic a n d i e t US P B - FUNDED RESEAR C H : Title Potatoes are not Associated with Obesity or Type II Diabetes when Potential Confounders are Controlled. Author(s) Drewnowski A Title White Potatoes, Non-Fried, Do Not Displace Other Vegetables in Meals Consumed by Journal/Citation Recently completed; Not Yet Submitted for Presentation American Children and Adolescents (14-18 yr) Study Design Studies that have examined the association between disease states and intakes of certain Author(s) Drewnowski A, Rehm C, Beals K. foods (e.g., potatoes) often do not control for potential confounding variables (e.g., SES, Journal/Citation FASEB 2011 education, diet quality, physical activity). In this study data from two cycles of the Nation- al Health and Nutrition Examination Survey (NHANES) 2003-2004 and 2005-2006 were Study Design Using data from 4-cycles (2001-08) of the National Health and Nutrition Examination used to evaluate the association between potato (baked, boiled and mashed) consump- Survey (NHANES), we evaluated whether consumption of white potatoes, (baked, roast- tion frequency, BMI and Type II Diabetes. Three models were used to analyze the above ed, or boiled), displaced other vegetables from the meals of children and adolescents listed associations: Model 1 adjusted for age, gender, race/ethnicity and education. Model aged 4-18 y. Approximately 10,600 lunches and 11,500 dinners were characterized by 2 adjusted for factors in model 1 as well as diet quality, fried potato consumption and place (at-home or away from home) and by source of food (e.g., store or school cafete- physical activity. Model 3 adjusted for factors in models 1 and 2 along with smoking. The ria). Children and adolescents consuming white potatoes, baked, roasted, or boiled were habitual frequency of potato consumption from the FFQ was broken into four categories: identified using the individual-food record. The median, inter-quartile range and survey- <monthly, 1-3 times per month, 1-2 times per week and greater than 3 times per week. The weighted mean number of other vegetable servings per 1000 calories were estimated for sample consisted of 5,882 adults over the age of 20. each meal. Results/ After adjustments for demographic variables (model 1) and lifestyle factors (model 2) Results Children whose weekday lunches included non-fried white potatoes consumed a median Conclusion there was no significant association between potato consumption and either obesity or of 0.37 servings of other vegetables at lunch as compared to only 0.19 servings for chil- diabetes. Failure to adequately control for confounding variables may bias associations dren whose lunches did not include potatoes. There was no evidence that white potatoes between selected dietary factors and health status. displaced other vegetables in school lunches. Meals containing potatoes had significantly higher amounts of vitamin C, potassium and fiber per 1000 calories than meals that did not contain potatoes. There were no significant differences in BMIs of children or adoles- cents who consumed potatoes vs those who did not consume potatoes. Conclusion Consumption of white potatoes (non-fried) among children and adolescents is associated with higher vegetable and nutrient intakes and does not promote overweight or obesity. 52 53
  • 29. r e f e r e nc e s 55
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Assessing the Role of Potatoes and Glycemic Index in Body USPB Contact Information Weight Management and Glucose Tolerance FASEB 2009 Reddivari L, Vanamala J, Chintharlapalli S, Safe SH, Miller JC Jr. Anthocyanin fraction from potato extracts is cytotoxic to prostate For more information, please contact: cancer cells through activation of caspase-dependent and cspase-independent pathways. Carcinogenesis. 2007;28:2227-2235. Sahyoun, NR, Anderson AL, Tylavsky FA, et al. Dietary glycemic index and glycemic load and the risk of type 2 diabetes in older adults. Am J Clin Nutr 2008 87: 126-131. Meredith Myers Email: meredithm@uspotatoes.com Sichieri R, Moura AS, Genelhu V, et al. An 18-mo randomized trial of a low glycemic index diet and weight change in Brazilian women. Am J Clin Nutr. 2007; 86:707-713. Mailing Address: United States Potato Board Stushnoff CD, Holm H, Thompson NI, et al. Antioxidant properties of potato cultivars. 91st Annual Meeting of the Potato Association of America. Idaho Falls, ID. Aug. 12-16, 2007. 7555 E Hampden Ave, #412 Denver, CO 80231 Web site: www.potatogoodness.com Tucker KL. et al. Potassium, magnesium and fruit and vegetable intakes are associated with greater bone mineral density in elderly Facebook: www.facebook.com/potatoestatersandspuds men and women. Am J Clin Nutr. 1999; 69:727-736. Telephone: (303) 369-7783 YouTube: www.youtube.com/potatogoodness United States Department of Agriculture. Agricultural Research Service: “What We Eat in American, NHANES 2001-2002: Usual Nutrient Intakes from Food Compared to Dietary Reference Intakes.” http://www.ars.usda.gov/SP2UserFiles/Place/12355000/pdf/ usualintaketables2001-02.pdf. Accessed: August 2011. Love the recipes you see here? Sign up at www.potatogoodness.com to receive a potato recipe via email every week. US Potato Board. Potato Attitude and Use Study. Final Report. Unpublished report prepared by Ipsos-Insight Marketing Research. June 2003. 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  • 32. Bringside of the fresh out Potat Discover new ways es. to make dinner amazing in under 30 minutes. Visit potatogoodness.com © 2011 United States Potato Board. All rights reserved. Mediterranean Sun-Kissed Savory Salad