Konjac is known for its ability to take up a large volume by absorbing water, especially in the stomach. This allows for a feeling of fullness quickly. Konjac is a plant native to Asia, used both in cooking and traditional medicine. Its root is known for its high content of glucomannan, a very soluble fiber. This fiber has high viscosity and a high water retention capacity. It will swell in the stomach and moderate appetite, which limits cravings, thus excessive calorie intake. It is a preferred weight loss ally, particularly rich in glucomannan. It contains 80% glucomannan for optimal action.