A balanced diet contains adequate amounts of all necessary nutrients from a variety of foods to promote good health. It provides energy, water, fiber, carbohydrates, fats, proteins, vitamins, and minerals. An improper or unbalanced diet can lead to poor growth, health issues, and diseases like obesity and diabetes. A balanced diet plan incorporates vegetables, fruits, dairy, grains, proteins, and healthy fats or oils at recommended amounts each day. The RDA defines adequate intake levels of essential nutrients to meet the nutritional needs of almost all healthy individuals.