Answer:

For decades, researchers have studied how beta 1, 3-D glucan works on the immune system. Hundreds of scientific papers have been published by researchers from the University of Louisville, Tulane University, and Harvard University, to name a few. These research papers describe in detail how beta 1, 3-D glucan acts on the immune system. Many of these papers have shown beta 1, 3-D glucan to be a highly effective immune modulator .

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