Glucomannan
What is it? Overview Usage Side Effects and Warnings
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Glucomannan Side Effects and Warnings

Written by FoundHealth.

Safety Issues

In Japan, food products containing glucomannan have a long history of use and are believed to be safe. However, there are some concerns about taking glucomannan as a supplement.

Some people taking glucomannan complain of excess gas, stomach distension, or mild diarrhea. These symptoms usually abate within a couple of days of treatment or with a reduction of the dosage.

In a few cases, glucomannan tablets have caused obstruction of the esophagus when they expanded before reaching the stomach. 1 In response to these reports, tablets of this type have been banned. Capsules, however, do not seem to pose the same risk because their casing prevents the glucomannan from contacting water until it reaches the stomach. The dramatic expansion of glucomannan has also raised some concerns that it could cause an obstruction in the intestines; nonetheless, as of yet, there have been no reports of this actually happening.

One option to offset all expansion risk is to mix glucomannan powder in water so that it expands before it is ingested; however, this strategy defeats the convenience of this form of fiber.

References

  1. Gaudry P. Glucomanna diet tablets [letter]. Med J Aust. 1985;142:204.
 
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1 Comment

Posted 8 years ago

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