Closer Mediterranean diet adherence was associated with lower mortality
Across cohort studies, higher diet scores tracked with fewer deaths from any cause, but the analysis cannot show that dietary changes extended life.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
Adults with higher Mediterranean diet adherence scores had lower all-cause mortality in the pooled cohort evidence. The estimate compares scores and does not test switching to a particular menu. Because the included studies were observational, the analysis cannot establish that changing diet would produce the same mortality difference for an individual.
This abstract-based explanation draws on observational studies with widely varying follow-up. The abstract does not explain how increments on different validated diet scores were made comparable.
What researchers found
Deaths from any cause: pooled relative risk
Each 1-point higher adherence score corresponded to 0.96 times the mortality risk at the lower score. Follow-up ranged from 2 to 60 years; this is a relative comparison, not an absolute percentage-point change or extra years of life.
What researchers combined
The review included studies following adults forward in time and studies using past records. Researchers combined associations between validated diet scores and deaths from any cause across populations and geographic settings.
How certain is the association?
The authors rated overall evidence certainty as moderate. That rating concerns the pooled association; the abstract does not identify a specific food change corresponding to an increment in every adherence score.
The original publication
Adherence to the Mediterranean diet and all-cause mortality: A systematic review and meta-analysis within the Italian National Guidelines "La Dieta Mediterranea".
Nucci D, Ragusa FS, Mazza E et al.
Nutrition · 2026
- PubMed ID
- 41930792
- Record checked
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