GNC Total Lean Chitosan With Glucomannan Review

Editor's Review: 3.5 / 5.0

What You Should Know

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GNC Total Lean Chitosan with Glucomannan is a fiber and shellfish supplement created from two of the most common weight loss ingredients used today. Just because these ingredients are commonly used, does not mean they are proven to ingredients. GNC does not bother to link to clinical studies supporting the claims of appetite suppression and weight loss surrounding this supplement.

List of Ingredients

Chitosan, Psyllium Husk Powder, Glucomannan Powder, Inulin, Fructooligosaccharides.

Product Features

Chitosan is a fiber derived from shellfish that is supposed to increase the feeling of fullness. Plenty of claims can be found about the supplement, but none of the claims are linked with clinical research supporting the appetite suppressing qualities supplement manufacturers list.

Psyllium Husk Powder is another form of fiber; bulk-forming this time around. With water, psyllium is supposed to help gather waste in the intestine and move it out of the body. In this way, the ingredient is more a laxative than a weight loss ingredient.

Glucomannan Powder is a water soluble fiber that expands by absorbing liquid. Again, the ingredient claims to leave the dieter feeling full, but no clinical research is listed on the GNC website or any other website we could find.

When fiber is the main ingredient in a supplement, there are potential side effects that may come with taking that product. These side effects can include bloating, gas and gastrointestinal pain. Dieters who have taken the supplement claim stomach aches and ineffective formula.

GNC Total Lean Chitosan with Glucomannan sells for $19.99 both in store and online. If the dieter has a gold card, the price is lowered to $15.99.

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  • Fiber is a healthy addition to any diet.
  • The price is lower than other weight loss supplements.
  • All ingredients are listed online.
  • Product reviews are available for dieters to read.


  • Fiber is not a weight loss ingredient.
  • This product could cause diarrhea or loose stool.
  • Gas, bloating, stomach ache and gastro-intestinal distress could be a side effect.
  • GNC does not bother to list clinical research to support weight loss claims.
  • Appetite suppression requires more than fiber.


For the $19.99 a dieter is asked to pay for this supplement, they could see some healthy benefits from the additional fiber intake, but the label only lists one gram of fiber per serving so some hearty vegetables would provide more fiber than the GNC Total Lean Chitosan with Glucomannan.

Though glucomannan absorbs water, the feeling of fullness described by GNC is not founded by research studies. There are hundreds of weight loss products that use glucomannan as an appetite suppressant and none are as effective as proven weight loss ingredients like green tea and chromium. We would not suggest the dieter choosing this GNC product.

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