DASH Diet
The DASH diet focuses on fruits, vegetables, whole grains, and low-fat dairy to reduce blood pressure and support healthy weight management.
Plain English
Patient-Friendly Explanation
The DASH Diet, which stands for Dietary Approaches to Stop Hypertension, was originally designed to lower high blood pressure but is also effective for weight management. It emphasises fruits, vegetables, whole grains, lean proteins, and low-fat dairy while limiting salt, added sugars, and saturated fats. Because it focuses on nutrient-rich, filling foods, it naturally supports healthy weight loss.
Medical
Clinical Definition
The DASH diet is an evidence-based dietary pattern rich in potassium (4,700 mg/day), magnesium (500 mg/day), and calcium (1,250 mg/day) while restricting sodium to 1,500-2,300 mg/day. Macronutrient composition targets 27% fat (≤6% saturated), 18% protein, and 55% carbohydrate. Randomised controlled trials demonstrate that DASH reduces systolic BP by 5.5 mmHg and diastolic BP by 3.0 mmHg in hypertensive patients. When combined with caloric restriction, DASH produces significant weight loss (mean 6.3 kg at 6 months) and improvements in insulin sensitivity.
Key Insight
Why It Matters
The DASH diet offers a heart-healthy, scientifically proven approach to eating that supports both blood pressure control and weight management. At Accord Medical Clinic, Dr Joseph Wang can help you adapt dietary patterns like DASH to suit your personal health needs and weight goals.
The DASH food groups
DASH stands for Dietary Approaches to Stop Hypertension. It was built for blood pressure but is also an effective weight-management pattern because it fills you with high-fibre, low-energy-density foods:
- Vegetables and fruit: 4–5 servings a day
- Whole grains: 6–8 servings a day
- Low-fat dairy: 2–3 servings a day
- Lean meat, poultry and fish: 2 or fewer servings a day
- Nuts, seeds and legumes: 4–5 servings a week
- Sodium: ideally under 1,500–2,300 mg a day
How it lowers blood pressure
DASH works through several mechanisms at once: potassium, magnesium and calcium from plants and dairy relax blood vessels, while the sodium cap reduces fluid retention. Randomised trials show systolic blood pressure falls by roughly 5–6 mmHg in people with hypertension — comparable to a single medication — and by 3 mmHg in those with normal pressure. The effect appears within two weeks.
DASH for weight loss
DASH is not designed as a weight-loss diet, but in trials where it was combined with a calorie deficit it produced meaningful weight loss (about 6 kg over six months). Its weight advantage is mechanical: vegetables, fruit and whole grains are bulky and fibrous, so you eat the same volume for fewer calories.
The Singapore version (salt is the hard part)
The challenging part of DASH here is sodium — hawker food is often salty, and soy sauce, fish sauce and curry pastes add hidden salt. Practical adaptations:
- Ask for less gravy, less sauce, or sauce on the side at hawker stalls
- Choose boiled or steamed dishes over soups and braised items (the liquid carries the salt)
- Rinse or drain canned goods; cook with herbs, chilli and lime instead of salt
- Watch 'hidden' sodium in bread, biscuits and processed snacks
- Drink plain water instead of soups and sweetened drinks
Common questions
What is the DASH diet?
A well-studied eating pattern designed to lower blood pressure: rich in vegetables, fruit, whole grains and low-fat dairy, with limited sodium, red meat, sweets and sugary drinks. It is also an effective, sustainable foundation for weight management.
How much salt can I have on DASH?
The classic DASH plan targets under 2,300 mg of sodium a day (about one teaspoon of salt), and a lower version goes under 1,500 mg. In Singapore, the realistic first step is cutting the obvious sources — gravy, soups, sauces — before counting milligrams.
Does the DASH diet help with weight loss?
Yes — in trials, DASH combined with a calorie deficit produced about 6 kg of weight loss over six months, with most of the benefit coming from its high-fibre, low-energy-density foods.
Can I eat at hawker centres on DASH?
Yes, with a simple rule: minimise the liquid salt (soups, gravies, sauces) and maximise vegetables and whole grains. Choose steamed or grilled dishes, ask for sauce on the side, and drink plain water.
Sources
Reviewed against standard medical references.
Medically reviewed by
Family Physician & Registered Acupuncturist, Accord Medical Clinic. MBBS (NUS), Graduate Diploma in Family Medicine (NUS), Graduate Diploma in Acupuncture (Singapore College of TCM).
Last reviewed: August 2026
This page is general health education, not medical advice. Whether any treatment is appropriate for you is a decision made in consultation after assessment.
