Dietary Approaches to Stop Hypertension (DASH) for the Primary and Secondary Prevention of Cardiovascular Diseases: A Systematic Review of Randomised Controlled Trials

The DASH diet effectively lowers blood pressure and improves lipid profiles in adults without diagnosed cardiovascular disease.
Evidence on its impact on hard cardiovascular outcomes such as myocardial infarction, stroke, and mortality remains limited and inconclusive.
No randomized controlled trials have tested the DASH diet for secondary prevention or its effect on heart failure and revascularisation procedures.
Robust long-term trials with larger samples are needed to clarify the DASH diet’s role in cardiovascular event prevention and safety.