Longevity Experts Are Obsessed With This Molecule-And You Can Get It From These 4 Foods

AOL.com•November 26, 2025•health

Key Points:

A small study published in Nature found that urolithin A supplements may improve biomarkers linked to age-related immune decline and chronic inflammation, known as inflammaging, after 28 days of supplementation in healthy middle-aged adults.
Urolithin A is a bioactive compound produced in the gut from certain foods by specific bacteria, but only about 40% of people have the gut microbiome capable of producing it efficiently; supplements can provide urolithin A directly without needing this conversion.
Foods like pomegranate, walnuts, raspberries, and blackberries contain precursors that can lead to urolithin A production in the gut, but large quantities would be needed to mimic supplement effects, and individual microbiomes greatly influence production.

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