Glucomannan is a type of vegetable fiber that comes from the root of a plant known as konjac (Amorphophallus konjac, to be specific). This fiber is commonly used in Asian health foods, and many herbal supplements now contain glucomannan. In addition to its use in foods, the fiber is often used for the following purposes:
Which Products Contain Glucomannan?
Currently there are a large number of products that contain glucomannan. It can be purchased in capsules, tablets, powders, shakes, and a variety of food products (such as konjac noodles or glucomannan flour). Many popular
weight loss pills contain it (in combination with other ingredients), including:
Glucomannan works like any other fiber product to relieve constipation and lower
cholesterol, as well as to help with obesity and type 2
diabetes. It is a fiber that is not absorbed into the body (it stays in the digestive tract). It increases the water absorption into the stool in the
colon, helping to relieve constipation. It probably works to lower cholesterol by helping the body get rid of cholesterol through the stool. Because fiber slows the emptying of the stomach, it can help people feel full and can help keep blood sugar more even. This is probably how glucomannan fiber helps with obesity and type 2 diabetes.