The My Baby Biome study, one of the largest and most diverse investigations into U.S. infant microbiomes, revealed that over 75% of participating babies exhibited key gut bacteria deficiencies associated with increased risks for allergies, asthma, and eczema. Initiated by Persephone Biosciences, the project utilized stool sample analyses combined with health follow-ups to underscore the urgent need to understand and address microbiome development in early childhood for immune system health.