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Reporter brief

Systematic review associates Planetary Health Diet with gut microbiome changes potentially linked to healthy aging

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This narrative review synthesized evidence on the Planetary Health Diet (PHD), gut microbiome composition, and aging. The authors report that adherence to PHD-consistent dietary patterns is associated with greater microbial diversity, increased production of microbial metabolites, and more favorable intestinal barrier and immune profiles. Prospective cohort studies and randomized controlled trials cited in the review show dietary patterns consistent with the PHD are associated with lower risks of cardiometabolic diseases, frailty, cognitive decline, and premature mortality.

Assessment pending; this report does not establish a change in evidence.

  • Limitations have not been recorded; consult the primary source.

Systematic review; Human.

General population; aging individuals

Design
Systematic review
Sample
—
Journal
Nutrients
Published
Sep 2, 2026

Not recorded.

  • Assessment: Superseded.
  • Only the source material recorded on this evidence page was assessed.

Not recorded.

See the Mediterranean diet timeline and recorded assessment for prior evidence.

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