<qa>  What is the name of the supplement that enhances the bodys immune system?Beta-Glucan Imucell WGP is an over-the-counter dietary supplement that enhances the bodys immune system. ImucellTM WGP is extracted from food-grade bakers yeast, which is permitted for use in food by the FDA. Animal studies have shown that Imucell WGP helps trigger the white blood cells to destroy cancer cells. Other animal studies combining Rituximab with Imucell WGP have shown greater tumor regression and tumor-free survival. 