Infant Gut Microbiome Development: Nutrition, Immunity, and Allergic Disease Prevention

The first few months of life set the trajectory for the infant gut microbiome — and the immune system along with it. See which early exposures matter most.

Infant-type bifidobacteria are considered keystone gut commensals — but newer data suggest they're becoming less common. Jarvinen-Seppo unpacks why, and what's driving the shift.

Bifidobacteria don't just live in the gut — they send chemical signals that train the immune system. Jarvinen-Seppo explains the mechanisms linking metabolites to immune tolerance.

Formula can't fully replicate what breast milk provides for the gut microbiome — but the gap may be narrower than clinicians think. Here's what the data show.