The DASH eating plan was developed based on two studies that found lowering sodium intake and following a diet rich in fruits, vegetables, and low-fat dairy can significantly reduce blood pressure. The DASH plan focuses on these foods while limiting saturated fat, cholesterol, and red meat. One study found the largest blood pressure reductions when following the DASH plan along with reducing sodium to 1,500mg per day. The document provides details on implementing the DASH eating plan, including recommended daily servings and tips for modifying it based on calorie needs or for weight loss.