Safety – FDA Classification:
Carrow, D.J. MD; “Beta-1,3-glucan as a Primary Immune Activator,” Townsend Letter; June 1996.
Direct Quote: “Beta 1,3-glucan is a safe and potent nutritional supplement with a profound systemic effect that can be described as nonspecific immune stimulation combined with its free radical scavenging activity. Remember, beta 1,3-glucan is generally recognized as safe (category GRAS, according to FDA) and has no known toxicity or side effects.”
Federal Drug Administration, “Appendix A Food Additives,” Yeast extract (Bakers) – FL/ADJ, GRAS, See Specs 184.1983. Washington DC. http://www.fda.gov 1997. Williams D.L. ,et al; “Pre-clinical Safety Evaluation of Soluble Glucan”, Int. J. Immunophamac. Vol. 10, No. 4: 405-414. Dept of Phys, Tulane U Sch of Med, New Orleans, LA. 1988.
Direct Quote: “Soluble glucan, a beta-1,3-linked glucopyranose biological response modifier, is effective in the therapy of experimental neoplasia, infectious diseases and immune suppression.”
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