DASH Diet: Complete Guide for Heart Health

DASH diet is ranked the #1 heart-healthy diet. Learn which foods lower blood pressure, what to avoid, and how to start this evidence-based eating plan today.

Frequently Asked Questions

What is the DASH diet?
DASH stands for Dietary Approaches to Stop Hypertension. It is an eating plan developed by the U.S. National Heart, Lung, and Blood Institute (NHLBI) that emphasizes fruits, vegetables, whole grains, lean protein, and low-fat dairy while limiting sodium, saturated fat, and added sugars. It is ranked the #1 diet for heart health and high blood pressure by U.S. News & World Report.
How quickly does the DASH diet lower blood pressure?
Blood pressure improvements can appear within 2 weeks of starting the DASH diet. The original DASH clinical trial showed measurable reductions after 8 weeks. Combining the DASH diet with a low-sodium intake of 1,500 mg per day produces the greatest results, with systolic blood pressure dropping by up to 11.5 mmHg in people with hypertension.
What foods do you eat on the DASH diet?
The DASH diet emphasizes vegetables (4–5 servings per day), fruits (4–5 servings per day), whole grains (6–8 servings per day), low-fat dairy (2–3 servings per day), lean poultry and fish (up to 6 oz per day), nuts and legumes (4–5 servings per week), and healthy fats like olive oil (2–3 servings per day).
Is the DASH diet good for weight loss?
The DASH diet is primarily designed to lower blood pressure, but many people lose weight while following it because it eliminates processed foods, added sugars, and calorie-dense snacks. Studies show DASH combined with a moderate calorie deficit and regular exercise produces meaningful weight loss alongside blood pressure reduction.
How much sodium is allowed on the DASH diet?
The standard DASH diet allows up to 2,300 mg of sodium per day, equal to about one teaspoon of salt. A stricter lower-sodium version limits intake to 1,500 mg per day. Combining the full DASH eating pattern with the lower sodium target produces the most significant blood pressure benefits.
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