Also known as: Mediterranean diet, MedDiet, Mediterranean-style
Latest evidence update: 2026-04-24
Strongest in Consistency (93). Held back by Recency (64).
Solid mix of RCTs with some methodological gaps.
Good cross-study replication, some imprecision.
Tens of thousands of participants pooled across studies.
Studies agree on direction of effect.
Healthy mix of recent and established research.
Effect-size tagged on 197 of 216 claims for this pattern. Our research updates daily; remaining claims are pending re-processing.
Areas where research points to a consistent direction of effect. The strength of evidence is graded; the size of the effect is not quantified.
Vegetable-forward diet emphasizing olive oil, fish, legumes, whole grains, nuts, and moderate wine. One of the most-studied dietary patterns for cardiovascular and mortality outcomes (PREDIMED, Lyon Heart).
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Mediterranean diet intervention showed no clear evidence of effectiveness for fatigue in rheumatoid arthritis, with insufficient evidence for meta-analysis.
Mediterranean diet adherence is associated with decreased dementia risk.
Mediterranean diet adherence is associated with an 18% reduction in risk of cognitive impairment compared to low adherence.
Adherence to the Mediterranean diet is associated with a significant reduction in stroke risk, with a pooled hazard ratio of 0.88.
Mediterranean diet intervention reported a significant effect on glycemic control in patients with type 2 diabetes.