Effect of glucomannan

1984;8(4):289-93.

Effect of glucomannan
on obese patients: a clinical study.

Abstract

An eight-week double-blind trial was conducted to test purified
glucomannan fiber as a food supplement in 20 obese subjects.
Glucomannan fiber (from konjac root) or placebo was given in
1-g doses (two 500 mg capsules) with 8 oz water, 1 h prior to each of three meals per d. Subjects were instructed not to change their eating or exercise patterns. Results showed a significant mean weight loss (5.5 lbs) using glucomannan over an eight-week period. Serum cholesterol and low-density lipoprotein cholesterol were significantly reduced (21.7 and 15.0 mg/dl respectively) in the glucomannan treated group. No adverse reactions to glucomannan were reported.

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