Inulin vs GOS


Inulin vs GOS


Prebiotic Fiber Types
October 19, 2026
Inulin, GOS, FOS, and PHGG are the most studied prebiotic fibers, each with unique chemical structures and evidence. This comparison covers their mechanisms, gut microbiome impact, tolerability, and practical dosage guidance. Use the side-by-side comparison and decision framework to choose which prebiotic fits your health goals.