Beta-1,3-1,6-glucan is a fiber extracted from bakers yeast (Saccharomyces cerevisiae). This particular branch structure is recognized by dectin-1 receptors in the gut-associated lymphoid tissue (GALT). Because it acts on gut receptors, the body does not need to absorb it into the bloodstream to trigger immune signaling.
People reach for yeast beta-glucan to bolster immune system function, especially when facing environmental or physical stress. Capsules or powders are taken once daily. Food does not change its effect, and no solid data promotes an empty stomach routine.
Yeast-derived beta-glucan may carry small traces of yeast protein. Anyone with a yeast allergy or sensitivity should be careful. This substance is not meant to replace medical care for infections or immune conditions.