Dietary Interventions for Hypertension Management
Summary
Hypertension remains a leading global health challenge, with dietary modifications forming a cornerstone of non-pharmacological management. Central to current guidance is the reduction of dietary sodium to attenuate fluid retention and vascular resistance, alongside enhancement of potassium intake to promote natriuresis. Dietary patterns such as the Dietary Approaches to Stop Hypertension (DASH) model emphasise fruits, vegetables, low-fat dairy products, whole grains, nuts and legumes, while limiting saturated fat, red meat, sweets and added salt. Complementary approaches include Mediterranean-style regimens rich in monounsaturated fats and polyphenol-bearing foods, plant-based diets that focus on minimally processed legumes and cereals, and weight-loss strategies to relieve haemodynamic load. Emerging interest has centred on the role of marine-derived omega-3 fatty acids, specific fatty acid profiles and the interplay between sodium–potassium balance, nitric oxide bioavailability and vascular function. Such interventions demonstrate clinically meaningful reductions in both systolic and diastolic blood pressure and confer ancillary metabolic and cardiovascular benefits.
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Dietary Interventions for Hypertension Management publication trend
The graph below shows the total number of articles in dietary interventions for hypertension management across all publications each year (not limited to Nature Index journals).
Technical terms
DASH dietary pattern: A dietary model emphasising fruits, vegetables, low-fat dairy, whole grains, nuts and legumes, with restricted saturated fat, sugars and sodium, shown to lower blood pressure.
Systolic blood pressure (SBP): The peak arterial pressure during cardiac contraction, used to assess cardiovascular risk and intervention efficacy.
Diastolic blood pressure (DBP): The minimum arterial pressure during cardiac relaxation, integral to diagnosing and monitoring hypertension.
Meta-analysis: A statistical method that combines results from multiple independent studies to produce pooled effect estimates and evaluate intervention outcomes.
Network meta-analysis: An extension of meta-analysis allowing simultaneous comparison of multiple interventions by integrating direct and indirect evidence across a network of trials.
References
- Diet to Stop Hypertension: Should Fats be Included?. Current Hypertension Reports (2024).
- DASH Dietary Pattern and Cardiometabolic Outcomes: An Umbrella Review of Systematic Reviews and Meta-Analyses. Nutrients (2019).
- Comparative effects of different dietary approaches on blood pressure in hypertensive and pre-hypertensive patients: A systematic review and network meta-analysis. Critical Reviews in Food Science and Nutrition (2018).
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