Glucomannan is also known as konjac fiber. It is derived from the root of the Amorphophallus konjac plant. It is commonly used in food preparation.This substance is a good source of dietary fiber and is used in several weight loss preparations.

Dosage

The accepted therapeutic dosage of konjac fiber is 3 to 5 g divided up over the day. Konjac fiber supplements are consumed before meals with 8 oz water. This process allows the konjac fiber to absorb the water and swell, filling the stomach, advises healthcare provider Blue Cross Blue Shield of Massachusetts.

Positive Effects

Consuming konjac fiber has a positive effect on lowering cholesterol and lowering blood pressure. Because of the supplement's ability to swell to three times its size via water absorption, people use it as a weight loss aid. Konjac fiber also helps regulate blood sugar levels.

Studies

While many scientific studies have touted the effectiveness of konjac root in managing obesity, others have shown lackluster results, according to BCBS. Konjac root is the most successful when combined with a sensible eating plan and exercise regimen.

Other Benefits

Gaining adequate fiber in the diet, such as with konjac fiber, helps ward off conditions such as intestinal cancer and irritable bowel syndrome.