High blood pressure (hypertension) affects nearly half of U.S. adults and is a leading risk factor for cardiovascular disease, stroke, and kidney damage.
Under the current American Heart Association and American College of Cardiology guidelines, Stage 1 hypertension is defined as a systolic pressure of 130–139 mm Hg or a diastolic pressure of 80–89 mm Hg, and Stage 2 hypertension begins at 140/90 mm Hg or higher.
Hypertension usually produces no symptoms, which is why dietary and lifestyle interventions remain critical first-line strategies for both prevention and ongoing management.
The DASH (Dietary Approaches to Stop Hypertension) eating plan, developed through National Heart, Lung, and Blood Institute research, is the most extensively studied dietary approach for blood-pressure reduction.
DASH emphasizes vegetables, fruits, whole grains, low-fat or fat-free dairy, lean proteins, nuts, seeds, and beans, while limiting saturated and trans fats, added sugars, and sodium. The pattern is naturally rich in potassium, magnesium, and calcium — minerals that help regulate blood pressure and support vascular function. Clinical trials show that adherence to DASH can meaningfully lower blood pressure within weeks.
Individual responses to these changes vary, which is why personalized nutrition assessment is useful for identifying the most effective approach.