Nature's Harbor Mega Fiber 6 contains many types of Dietary Fibers including Bran Fiber, Oat Fiber, Apple Pectin, Prune Powder, Peach Fiber, Legume Fiber, Acidophilus Powder and Cruciferous Vegetables (brussel sprouts, broccoli, spinach, cauliflower, cabbage and carrots). Fiber works to regulate the Digestive System, promotes overall Colon Health, and may facilitate Weight Loss.