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Mediterranean Diet

The Mediterranean diet is a dietary concept first proposed in 1975 by Ancel Keys and Margaret Keys, inspired by the eating habits of Greece, Italy, Southern France, Spain, and the Levant during the late 1950s to early 1960s. It is the most well-known and researched dietary pattern in the world.

Core Principles

The Mediterranean diet emphasizes: - Plant-based foods: Unprocessed cereals, legumes, vegetables, and fruits as dietary foundations - Healthy fats: extra-virgin-olive-oil as the principal source of fat, rich in monounsaturated fatty acids and polyphenols - Moderate protein: fish and dairy (mostly cheese and yogurt) in moderate amounts - Limited red meat: Low amounts of red meat, refined grains, and added sugars - Wine: Optional low to moderate consumption, typically with meals - Low saturated fat: High in monounsaturated fat and dietary fiber

Cardiovascular Benefits

The Mediterranean diet is extensively studied for cardiovascular protection:

  • All-cause mortality: Associated with reduction in overall mortality in observational studies
  • Heart disease: 2017 review confirmed lowered risk of heart disease and early death
  • Stroke prevention: 2014 meta-analysis found elevated olive oil consumption specifically reduced stroke risk
  • Women's health: 2023 review demonstrated reduced mortality and CVD risk specifically in women
  • Cancer: 2021 review associated adherence with 13% lower risk of cancer mortality; strict adherence correlated with 6% decreased risk of dying from cancer
  • Cognitive health: 2013 systematic review found greater adherence correlated with lower risk of Alzheimer's disease and slower cognitive decline
  • Weight management: May help with weight loss in obese people through natural calorie reduction

Recognition and Standards

The Mediterranean diet is recognized by the World Health Organization as a healthy eating pattern and was designated an Intangible Cultural Heritage of Humanity by UNESCO in 2010.

Clinical Evidence in Post-MI Recovery

Significant benefits for secondary prevention were demonstrated in the lyon-diet-heart-study, which showed a 50–70% reduction in recurrent cardiac events when following this pattern, particularly through consumption of alpha-linolenic-acid. The cordioprev-trial further supported its efficacy, showing a 28.1% lower risk of recurrent major-adverse-cardiovascular-events compared to low-fat alternatives.

Key Foods and Comparisons