Beta Glucan is a natural, branched polysaccharide (string of sugar molecules) found in cell walls of foods such as mushrooms, yeast, oats and barley.

Researchers have studied all forms of beta glucan, which is found in more than one linkage type. Linkages of (1-3), (1-4) and (1-6) linkages are known to occur.
Each type of beta glucan has a unique structure in which glucose molecules are linked together in different ways, giving them different biological properties.

It is important to note that only the 1,3/1,6 linkages of mushroom-derived  beta glucan are known to spark the greatest degree of biological activity, making it the most potent immune system enhancer. In fact, research demonstrates that ABM mushroom-derived  beta glucan has far superior immune-enhancing benefits when compared with oat and barley beta glucans.

Agaricus Blazei Murill mushroom derived  beta glucans are notable for their ability to modulate the immune system. Research has shown that insoluble  beta (1,3/1,6) D-glucan, found in ABM mushroom has greater biological activity than that of its soluble beta (1,3/1,4) D-glucan counterparts, which are common in oats and barley.

Dr. Joyce Czop  of Harvard University described Beta Glucan as the “ ignition key “ of Man’s most primitive immune cell – the enormously powerful and versatile macrophage. According to Dr. Czop , Beta 1,3 D-glucan achieves its immune enhancing effects by docking with specific receptor sites on the surface of the macrophage/monocyte, which then activates, or 'arms' them. Once in their activated state, these cells are able to initiate their powerful cascade of immune events , as-and-when required.