NOW Foods Prebiotic Fiber with Fibersol-2 provides a soluble dietary fiber powder featuring Fibersol-2 — a patented digestion-resistant maltodextrin derived from corn starch that has been clinically studied for its prebiotic effects on gut microbiome composition, blood sugar stabilization after meals, cholesterol support, and improved satiety. Unlike some fiber supplements that cause gas and bloating at effective doses, Fibersol-2 is well-tolerated even at higher doses because it ferments slowly and selectively. Research shows it significantly increases populations of Bifidobacterium and Lactobacillus in the colon. The powder dissolves completely in water or beverages with no change in taste or texture — making it the most convenient and undetectable way to boost daily prebiotic fiber intake. Manufactured in NOW's GMP-certified facility.