Konjac Glucomannan is a water-soluble polysaccharide with hygroscopic properties and is considered a dietary fiber. The dry powder swells into bulky fiber in water, absorbing up to 50 times its weight while in water. Glucomannan's principal use is as a bulking agent to promote the feeling of fullness or satiety, thereby helping to manage food intake. Glucomannan might work in the stomach and intestines by absorbing water to form a bulky fiber which treats constipation.*