Glucomannan is an extract of konjac (Amorphophallus konjac) and is a source of water-absorbing beta-glucan, a type of soluble fiber. Soluble fiber helps regulate digestion speed, regulate blood sugar, and increase nutrient absorption. While glucomannan is high in dietary fiber, it is very low in calories and contains almost no proteins or vitamins.
Glucomannan is used as a dietary supplement and food in the form of konjac jelly, noodles, and tofu. It has been studied extensively for its potential effects on body weight, blood glucose, cholesterol, triglycerides, and blood pressure. Additional research has been done on other benefits, such as its potential as an anti-diabetic, anti-obesity, laxative, prebiotic, and anti-inflammatory supplement.
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