Early establishment of Bifidobacterium-dominant microbiome in planned cesarean-born infants via Bifidobacterium breve strain Yakult supplementation: A randomized, double-blind, placebo-controlled, parallel-group pilot study

BbrY supplementation immediately after birth facilitated the early establishment of a Bifidobacterium-dominant microbiome and contributed to intestinal acidification in cesarean-born infants, indicating BbrY administration may support normal growth patterns during infancy.