News summary

A Review of Differences Identified in Gut Microbiome Composition Between Young, Old, and Long-Lived Individuals

Source: Fight Aging! • Published: 13 Oct 2026, 18:16

Summarized by Masters of Longevity from Fight Aging!.

Gut microbiome changes across age groups: a systematic review article summarizing human studies that compare microbial composition and functional patterns between younger, older, and long-lived adults, offering insights useful for readers interested in how gut ecology relates to healthy ageing.

A Review of Differences Identified in Gut Microbiome Composition Between Young, Old, and Long-Lived Individuals
Key Takeaways
  • The review included 41 human studies using mostly 16S rRNA sequencing and shotgun metagenomics.
  • Centenarians showed consistent enrichment of Akkermansia, Alistipes, and Parabacteroides compared with younger groups.
  • Age-related functional shifts involved amino acid catabolism, vitamin biosynthesis, and pathways linked to inflammation and gut barrier support.
Read the full article at Fight Aging! ↗

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