Oligosaccharides are indigestible fibers (prebiotics) found in breast milk (HMO) that serve as food the healthy bacteria in the intestine that is responsible for a healthy immune system and digestion. Breastfeeding a baby is the easiest form to improve the gut microbiome of your baby. Nonetheless, when feeding formula you don’t have to worry about your baby not getting the same nutrients.Galacto-oligosaccharides (GOS) derived from cow’s milk lactose are almost identical in their structure to HMO’s and improve your baby’s gut flora just as well - for a happy stomach. And mommies know, a better digestion means less fussiness and a better sleep schedule!