Research

Mixed

Adherence to a Mediterranean diet is associated with a statistically significant inverse association (reduced risk) for type 2 diabetes, cardiovascular disease, and cognitive decline, though the credibility of this evidence is rated as low to moderate due to heterogeneity.

Adopting a Mediterranean-style eating pattern is associated with reduced risks of type 2 diabetes, cardiovascular disease, and cognitive decline. While the evidence quality is moderate due to inconsistent definitions across studies, the consistent inverse association suggests that prioritizing plant-based foods, healthy fats, and lean proteins is a beneficial long-term strategy for chronic disease prevention.

ModerateSupportsMEDIUM confidence
Almost all meta-analyses reported inverse associations between MedDiet and risk of chronic disease, but the credibility of evidence was rated low to moderate.
Cecilia Galbete et al. · European Journal of Epidemiology · 2018

Why this rating

The umbrella review rates the credibility of the underlying meta-analyses as 'low to moderate' due to heterogeneity and methodological flaws.

Source

Evaluating Mediterranean diet and risk of chronic disease in cohort studies: an umbrella review of meta-analyses

Cecilia Galbete et al. · European Journal of Epidemiology · 2018

DOI 10.1007/s10654-018-0427-3

Meta-analysis · 70 studiesCited 206×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →