These Beta Glucan supplements are an immune-stimulating1 form of Beta (1,3/1,6) D-Glucan, which is a naturally occurring polysaccharide compound. This complex carbohydrate found in yeast provides nutritional support to maintain a healthy immune system.* Of the four main sources of beta (1,3/1,6) d-glucan yeast has had the most precise research conducted on it, starting in the1940's with Dr. Linus Pauling.1*
A.F. de Oliveira,Vaclav Vetvicka, Fábio S. Zanuzzo, ß-Glucan successfully
stimulated the immune system in different jawed vertebrate species.
Comparative Immunology, Microbiology and Infectious Diseases. Elsevier Ltd.
February 2019. https://doi.org/10.1016/j.cimid.2018.11.006
2. Stier H,
Ebbeskotte V, Gruenwald J. Immune-modulatory effects of dietary Yeast
Beta-1,3/1,6-D-glucan. Nutr J. 2014;13:38. Published 2014 Apr 28.