Mediterranean Diet Effects on Cardiovascular Health
Summary
The Mediterranean diet is a plant-centred dietary pattern characterised by high consumption of fruits, vegetables, legumes, nuts, whole grains and olive oil, moderate intake of fish and poultry, low consumption of red meat and dairy products, and regular but moderate wine intake. Over decades of epidemiological and interventional research, adherence to this dietary pattern has been consistently linked with reduced incidence of coronary heart disease, stroke and cardiovascular mortality. Mechanistic studies attribute these benefits to synergistic anti-inflammatory and antioxidant effects, favourable modulation of lipid profiles with increased HDL and reduced LDL oxidation, improvements in endothelial function, blood pressure regulation and insulin sensitivity. Randomised clinical trials have demonstrated absolute risk reductions in major cardiovascular events, while prospective cohort studies have quantified lower hazard ratios for incident disease across diverse populations. The Mediterranean diet has transcended its regional origins to inform global dietary guidelines, offering a sustainable and culturally adaptable template for public health strategies aimed at curbing the burden of heart disease.
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Mediterranean Diet Effects on Cardiovascular Health publication trend
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Technical terms
Mediterranean diet score (MDS): A composite index that quantifies adherence to the Mediterranean dietary pattern based on intake of characteristic food groups.
Absolute risk reduction (ARR): The difference in event rates between an intervention group and a control group, expressed as a percentage.
Hazard ratio (HR): A measure from survival analysis indicating the relative risk of an event occurring in one group compared with another over time.
Network meta-analysis: A statistical method that synthesises data across multiple treatments from both direct and indirect comparisons in randomised trials.
References
- Medical Nutrition Therapy (MNT) Evidence Update: Comparative Effectiveness of Dietary Programs for Reducing Mortality and Cardiovascular Events in Adults with Increased Cardiovascular Disease Risk. Advances in Nutrition (2025).
- Combined associations of physical activity, diet quality and their changes over time with mortality: findings from the EPIC-Norfolk study, United Kingdom. BMC Medicine (2024).
- Zebrafish Model Insights into Mediterranean Diet Liquids: Olive Oil and Wine. Antioxidants (2023).
- Definitions and potential health benefits of the Mediterranean diet: views from experts around the world. BMC Medicine (2014).
- Metabolic and Vascular Effect of the Mediterranean Diet. International Journal of Molecular Sciences (2019).
- Effects of the Mediterranean Diet on Cardiovascular Outcomes—A Systematic Review and Meta-Analysis. PLOS ONE (2016).
- Prospective association of the Mediterranean diet with cardiovascular disease incidence and mortality and its population impact in a non-Mediterranean population: the EPIC-Norfolk study. BMC Medicine (2016).
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