Characteristics and longitudinal stability of Gut Microbiota in healthy individuals across different age groups

Highlights

• Teenagers (13–17 years) show the highest gut microbiota stability among healthy individuals aged 3–30 years.

• Core genera Faecalibacterium and Bifidobacterium have ICC > 0.90, highlighting their value as stable biomarkers for FMT donor screening.

• An ICC-based framework is proposed to enhance quantitative donor evaluation and standardize FMT practices.

https://www.sciencedirect.com/science/article/pii/S2666517425001725