The Dietary Approaches to Stop Hypertension (DASH) style eating plan helps to prevent and control high blood pressure, which can increase your risk for heart disease and stroke. Following a DASH style eating plan means consuming a diet that is rich in fruits and vegetables. The DASH style eating plan also emphasizes whole grains, lean meats and fish, nuts and seeds, and dairy. It is rich in potassium, magnesium, and calcium, as well as protein and fiber and low in total and saturated fat and cholesterol.