DASH Diet

DASH stands for Dietary Approaches to Stop Hypertension, an eating pattern originally developed by NIH researchers specifically to lower blood pressure. Rather than banning foods, it works through serving-based targets: 6–8 servings/day of grains, 4–5 vegetables, 4–5 fruits, and 2–3 low-fat or fat-free dairy servings, alongside limited lean meat, added sugar, and saturated fat. Sodium is the other core pillar, with a standard target of 2,300 mg/day or less and a lower target of 1,500 mg/day for greater blood pressure reduction.

DASH stands for Dietary Approaches to Stop Hypertension. Unlike most diets on this page, it was developed by NIH researchers specifically as a clinical intervention, not adapted from a traditional cuisine. It works on a serving-count structure (based on a 2,000 kcal/day reference diet):

6–8 servings/day grains · 4–5 vegetables · 4–5 fruits · 2–3 low-fat or fat-free dairy · up to 6 servings/day lean meat, poultry, or fish · 2–3 fats/oils · 4–5 servings/week nuts, seeds, and legumes · 5 or fewer servings/week sweets.

Sodium is the other pillar: the standard target is 2,300 mg/day or less, with a lower target of 1,500 mg/day for greater blood pressure reduction.

Consistently ranked among the top diets for cardiovascular health, with a research base spanning controlled feeding trials to large long-term cohorts.

Emphasized: vegetables (broccoli, spinach, carrots, sweet potatoes), fruits (apples, bananas, berries, oranges), whole grains (brown rice, oats, whole-wheat bread), low-fat dairy (skim milk, low-fat yogurt, part-skim mozzarella), lean protein (skinless chicken, salmon, tilapia, eggs in moderation), and nuts/legumes (almonds, walnuts, lentils, kidney beans).

Limited: table salt, cured and deli meats, canned soups, red meat, full-fat dairy, sugary drinks, and sweets/desserts.

Breakfast: oatmeal with sliced banana and walnuts, skim milk.

Lunch: grilled chicken salad (mixed greens, tomatoes, cucumber, olive oil-and-vinegar dressing), whole-wheat roll.

Snack: unsalted almonds and an apple.

Dinner: baked salmon, steamed broccoli, brown rice, side salad.

Evening snack: low-fat yogurt with berries.

A strong fit for people with hypertension, prehypertension, or elevated cardiovascular risk who want a produce-and-whole-grain-forward pattern with real RCT evidence behind the blood-pressure claim. The main friction point is sodium: hitting 2,300 mg (let alone 1,500 mg) usually means reading labels and cooking more from scratch, since packaged and restaurant food runs high by default. The dairy servings may not suit anyone lactose-intolerant or vegan without substitution, and fresh produce plus lean protein can raise grocery cost and prep time versus more processed staples. DASH also isn't built as a weight-loss plan — it has no calorie-restriction mechanism of its own — so pair it with a calorie target if weight change is the goal.

No — DASH is not a nut-free diet, and there's no separate, established "nut-free diet" it's being compared against. Nuts are an actively recommended part of the plan: NHLBI's DASH guidelines call for 4–5 servings/week of nuts, seeds, and legumes (one serving is about ⅓ cup nuts, 2 tbsp peanut butter, 2 tbsp seeds, or ½ cup cooked beans/peas), valued as a source of fiber, protein, and magnesium. Mayo Clinic's guidance sets the same 4–5 servings/week target and notes nuts are included specifically because most of their fat is unsaturated — part of DASH's broader swap of saturated fat for healthier fats.

If you have a nut allergy, or avoid nuts by preference, you can still follow DASH exactly as designed — the plan already includes other DASH-approved sources of that same unsaturated fat, fiber, and protein. Olive oil and other plant oils cover the "fats and oils" servings (2–3/day), avocado and fatty fish like salmon fit within the lean-protein allowance, and — if your allergy is specific to tree nuts or peanuts rather than seeds — sunflower or pumpkin seeds sit in the same "nuts, seeds, legumes" category without the cross-reactivity risk. Legumes (beans, lentils, peas) cover that category too, with no nut-allergen overlap at all. None of this requires deviating from DASH's structure; it's a substitution within food groups the plan already includes.

NIH/NHLBI — DASH Eating Plan →

Mayo Clinic — DASH Diet: Guide to Recommended Servings →