This Upfront Fiber Blend combines four carefully selected fibers: the patented Benicaros® (carrot fiber with RG-I), FiberSMART® (tapioca fiber), guar bean fiber, and chicory root fiber. Prebiotics are indigestible dietary fibers that reach the large intestine, where they serve as food for beneficial gut bacteria. Unlike many other brands that use only one or two fibers, our blend contains multiple fibers with complementary properties. This supports different bacterial strains and various parts of the gut.