Glucomannan Dosage

The glucomannan dosage will vary based on several factors, such as your age, the medical condition being treated, and the particular product used. Unlike prescription medication, there is less information available for determining the best dose for most herbal supplements, including glucomannan. When first starting glucomannan, it is best to start with a low dose and then gradually increase to a higher dose in order to help prevent side effects.

An Introduction to Glucomannan Dosage

The recommended dose of glucomannan will vary depending on a number of factors, including:
  • The medical condition being treated
  • Your age
  • The particular glucomannan product.


It is important to note that unlike prescribed medications (for which the standard doses have been well established), there is usually less information for determining the best dose for most herbal supplements.

Glucomannan Dosing for Constipation

Studies have used various glucomannan doses for treating constipation. Some studies have used glucomannan 1 gram two or three times daily for treating chronic constipation in adults. Higher doses may be necessary if glucomannan is used occasionally (not on a regular, preventative basis) to treat constipation.

Glucomannan Dosing for Weight Loss

For adults, a dose of glucomannan 1 gram three times daily (one hour before each meal) has been recommended to aid in weight loss. When people take glucomannan before a meal, they have a sense of fullness and tend to eat less during the meal.

Glucomannan Dosing for Type 2 Diabetes

In studies, doses of glucomannan, ranging from 3.6 mg to 10.6 grams per day, have been used to help lower blood sugar (as well as lowering cholesterol) in people with type 2 diabetes.
7 Signs of High Blood Sugar

Glucomannan for Weight Loss

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