Beta glucan enhances the immune system by improving the immune response when the immune system is confronted with a foreign body it sees as non-self. (i.e. viruses, bacteria, fungi, cancer, parasites, etc.) Beta 1, 3-D glucan is an intensely purified, highly biologically active form of beta glucan. When absorbed and converted, beta 1, 3-D glucan attaches to specific sites on all immune cells that have CR3 receptors. By attaching, or binding, to these specific sites, beta glucan puts these immune cells on ‘high alert’ to foreign bodies they see as non-self. This process is called immune modulation. Research shows beta 1, 3-D glucan is a highly effective immune modulator. It is easily absorbed through the Peyer’s Patches in the small intestine and converted into a form of beta glucan which binds to immune cell receptor sites CR3, mac-1, CD11/CD18.