Your Unique Fingerprint

Your microbiome is as personal as a fingerprint. Even identical twins share only about 50% of their gut bacterial species.

C-section babies start life with different bacteria than vaginally born babies — skin bacteria rather than vaginal bacteria — and the difference can persist for months, potentially shaping immune development.

Breastfed infants build different microbial communities than formula-fed ones, because breast milk contains human milk oligosaccharides: special sugars humans cannot digest but that specific beneficial bacteria feed on.