A Prebiotic Fiber Found in Human Milk: HMOs are prebiotics initially found in mother's milk. HMO helps human babies build a healthy gut and immune system from scratch. Highest Purity: PureHMO human milk oligosaccharide powder is 98% 2'-FL (Fucosyllactose) produced by fermentation technology (Not From Human). Nothing else, just pure HMO. Gut Digestive Health: HMO prebiotic powder promotes the growth of probiotics like Lactobacillus, Bifidobacterium, Akkermansia, and maintains a healthy gut microbiome. Immune Support: HMO are more effective than traditional prebiotics (GOS, XOS, Inulin) in stimulating innate immune system and supporting your immune health.