Only Natural Chitosan Fat Blocker helps prevent the metabolism of fats and decreases cholesterol absorption. Chitosan Formula helps prevent the absorption of fats into the digestive system. The proper functioning of the intestinal tract depends upon the presence of adequate dietary fiber. Only Natural's Chitosan provides a balance of crude and dietary fiber from natural sources. Chitosan, Psyllium, Soy Fiber prevents the metabolism of fats and decreases cholesterol absorption helping to maintain a healthy intestinal tract, while reducing the intake of fats into the body.