I decided to check the web and this is info from one of the sites on beta-glucan. It sounds like great stuff in the war against fungals, bacterials and parasites. It assists the immune system in addition, it has anti-cancer properties.
Radiation Therapy: "The Biological activity of beta-glucans"; Minerva Medical; 100(3):237-245; Pub Med 19571787; Jun 2009; Quote: "...Beta-glucans have studied for their hypocholesterolemic effects; these mechanisms include: reducing the intestinal absorption of cholesterol and bile acids by binding to glucans; shifting the liver from cholesterol syntheses to bile acid production; and fermentation by intestinal bacteria to short-chain fatty acids, which are absorbed and inhibit hepatic cholesterol syntheses. ...beta-1,3-glucans improve the body's immune system defense against foreign invaders by enhancing the ability of macrophages, neutrophils and natural killer cells to respond to and fight a wide range of challenges such as bacteria, viruses, fungi, and parasites. ...there is renewed interest in the potential usefulness of beta-glucan as a radioprotective drug for chemotherapy, radiation therapy and nuclear emergencies, particularly because glucan can be used not only as a treatment, but also as a prophylactic [taken in advance for protection]."