Evidence-backed eating patterns
DASH diet
Dietary Approaches to Stop Hypertension, a pattern developed in US National Institutes of Health trials to lower high blood pressure, emphasising fruit, vegetables, wholegrains, beans and lower-fat dairy while limiting sodium, sweets and red meat.
What people typically eat
Four to five servings each of fruit and vegetables daily, wholegrains at most meals, beans and nuts several times a week, low-fat dairy daily, and modest portions of lean meat or fish.
What is restricted
Sodium (targeted limits), sweets, sugar-sweetened drinks, fatty red meats and full-fat dairy.
Why people try it
Primarily to reduce blood pressure; also chosen for cholesterol improvement and steady weight control.
Realistic advantages
- Demonstrated blood-pressure reduction in clinical trials, often within weeks
- Nutritionally balanced and suitable for the whole family
- Consistently ranked among the best-supported diets by independent panels
Realistic disadvantages
- High fruit, vegetable and dairy targets take planning to hit every day
- Low-sodium cooking can feel bland until tastes adjust
- Less of a structured "programme", which some people miss
Strength of evidence
Strong evidence
Multiple randomised controlled trials show clinically meaningful blood-pressure reductions.
Key studies
Likely cost and difficulty
Low-to-moderate cost; moderate difficulty, the daily serving structure needs attention at first.
Nutritional risks
Minimal. People with kidney disease should check potassium targets with their care team.
Who should avoid it
People on potassium- or phosphate-restricted renal diets should only follow it with clinical guidance.
Is professional supervision advisable?
Not required for most; advisable if you have kidney disease or take blood-pressure medication that could need adjusting.
References
Written by the Slimr editorial team. How we review diets.
