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Konjac glucomannan


Glucomannan/Nutrient Depletion:
  • NoteNote: Increased consumption of any dietary fiber is thought to have the potential to reduce the absorption of oral agents, including various nutrients.
  • Fat-soluble vitaminsFat-soluble vitamins: In human research, glucomannan resulted in decreased absorption of vitamin E (25). However, the combination of glucomannan and chitosan had no effect on various fat-soluble vitamins (vitamin A, vitamin E, 25-hydroxyvitamin D) or carotenes in a study investigating this combination in men and women (13).
  • GlucoseGlucose: In human research, glucomannan significantly lowered fasting blood glucose (11; 14).
  • LipidsLipids: In human research, glucomannan significantly lowered blood levels of total and LDL cholesterol (11; 12; 14; 16; 15).

Copyright © 2011 Natural Standard (

The information in this monograph is intended for informational purposes only, and is meant to help users better understand health concerns. Information is based on review of scientific research data, historical practice patterns, and clinical experience. This information should not be interpreted as specific medical advice. Users should consult with a qualified healthcare provider for specific questions regarding therapies, diagnosis and/or health conditions, prior to making therapeutic decisions.

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