Beta-Glucans are natural bioactive carbohydrates, with those derived from certain yeasts and fungi being known for their ability to support immune function. * Jarrow Formulas Beta Glucan is a high purity extract from the cell walls of a proprietary Baker’s yeast (Saccharomyces cerevisiae) strain with a unique molecular structure comprised primarily of (1,3)-ß-linked glucose chains (>75%) and a relatively small number of (1,6)-ß-linked side chains. Scientists believe that it may have an impact on lowering blood cholesterol levels. Research on this issue and attempts to explain it are still ongoing, but some hypotheses are emerging about it. It is possible that beta-glucan binds bile acids, which inhibits their absorption in the gastrointestinal tract, and therefore must be excreted from the body. Excess fat, including bad cholesterol, is removed from the body, and in addition, beta-glucan creates a film on the intestine that prevents the excess from being absorbed.