Learn Glossary thickener gum

Glucomannan

Level 3ContestedIn Winter's Dictionary

Glucomannan is a thickener gum — Powder extracted from konjac plant; absorbs liquid in stomach

What it does

Powder extracted from konjac plant; absorbs liquid in stomach

Where you'll see it

Weight-loss supplements

What the research says

FDA refused GRAS without scientific data.

Regulatory status

  • Notes: FDA refused GRAS without scientific data

Sources

  • A Consumer's Dictionary of Food Additives (Winter): the FDA was asked to approve it as GRAS but refused to do so unless scientific data were submitted