Illustrative stock photograph by ALEXANDRA TORRO on Unsplash; it does not depict review participants, study meals, or results.
A new systematic review found generally favorable links between Mediterranean-style eating and selected measures of healthy aging—but the evidence was too varied to prove that one version of the diet slows aging.
What changed
Researchers reviewed 11 studies published from 2013 through 2025: five randomized trials, four prospective cohorts, and two cross-sectional studies. Some reported better cognitive performance or slower memory decline, while others found favorable changes in inflammation, frailty, telomeres, or DNA-based aging markers. Physical-performance gains were mainly seen when diet changes were paired with exercise.
How strong is the evidence?
Systematic review of mixed human evidence. Two reviewers independently selected and extracted studies, and the protocol was registered. However, the diets, participants, outcomes, and added lifestyle programs differed too much for a meta-analysis. Several randomized trials also had important risk-of-bias concerns.
What remains uncertain
The review cannot separate food effects from exercise, calorie restriction, or other lifestyle changes in several studies. Biological-age clocks, telomeres, and inflammatory markers are surrogate measures; they do not prove longer life or preserved independence. No single Mediterranean menu was tested across all studies.
Why it matters
The overall pattern remains sensible—vegetables, legumes, whole grains, nuts, fish, and unsaturated fats—but “anti-aging” claims should stay modest. The evidence supports healthy eating, not a guaranteed longevity formula.
Related: Mediterranean diet, fasting, lipids, and inflammation.
Sources
Systematic review in Nutrition Reviews, published November 2, 2026.
