New analyses and guidelines in 2024–2025 highlight sustained evidence for the Mediterranean diet, underscoring its relevance amid longevity trends. A Harvard analysis in JAMA Network Open (2024) tracked 25,000 women for 25 years and linked the Mediterranean diet to 23% lower all-cause mortality. Researchers reported lower inflammation and cardiovascular risk, echoed in trials relevant to longevity. By 2025, it was ranked the No. 1 diet for five consecutive years for nutritional completeness, sustainability, and evidence-based effectiveness. Studies in 2025 associated the pattern with better brain function and lower risks of cancer, high blood pressure, bone loss, and possibly Alzheimer’s disease. Italy’s 2025 synthesis from over 20 scientific societies issued 84 recommendations endorsing the diet and noting olive oil, omega‑3s, and microbiome benefits.
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