Beta Glucan

What are Beta-glucans?

Beta-glucans are polysaccharides (large glucose molecules linked together) found in the cell walls of mushrooms, cereals such as oats and barley, some algae and yeast. Among other things, beta-glucans (cellulose, chrysolaminarin, curdlan, laminarin, lentinan, lichenin, pleuran and zymosan) play a role as an energy reserve.

There are several compounds, each with its own physiological effects, of which beta-1,3-glucan and beta-1,6-glucan are of most value to humans.

How does Beta Glucan work?

Our gut is happy with beta-glucans because they are fermentable fiber, also called prebiotics. And happy guts, in turn, are good for our immune system. Fermentable fiber can be broken down in the intestines, where it serves as food for our gut bacteria.

In addition, beta-glucans contribute to the maintenance of normal cholesterol levels in the blood. Thus, an intake of at least 3 grams of beta-glucans from food (for example, oatmeal) already has an effect.

Beta glucan side effects

Supplements containing beta-glucans are generally well tolerated. However, it is important that the active ingredient is purified and does not contain too many contaminants. This reduces efficacy and could cause an allergic reaction in people who are sensitive to it. Therefore, buy only beta glucan from reliable brands.

Written by: Marcella van der Wel
Reviewed by: Wouter Olthof

Updated: January 5, 2023