Science

Mediterranean diet may boost tiny proteins that protect the heart and brain

Scientists have uncovered a surprising new clue to why the Mediterranean diet is so good for the heart, brain, and healthy aging.

✦ Extractive summary — built from the sources' own reporting•From 1 source•1 min read•Updated October 25, 2026, 1:38 AM UTC
Key points
  • Scientists have uncovered a surprising new clue to why the Mediterranean diet is so good for the heart, brain, and healthy aging.
  • Researchers at USC found that older adults who closely followed the diet had higher levels of two tiny proteins, humanin and SHMOOSE, produced by the mitochondria, the…
  • These proteins have been linked to protection against heart disease, Alzheimer's disease, and age-related damage.

Scientists have uncovered a surprising new clue to why the Mediterranean diet is so good for the heart, brain, and healthy aging.

Researchers at USC found that older adults who closely followed the diet had higher levels of two tiny proteins, humanin and SHMOOSE, produced by the mitochondria, the energy-producing structures inside cells.

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