BioBran MGN-3, a non-toxic glyconutritional food supplement (or functional food) made from breaking down rice bran with enzymes from the Shitake mushroom, has been clinically proven to help powerfully enhance depleted immune systems. So successful is this unique and patented MGN-3 arabinoxylan supplement at stimulating immune function that Professor M. Ghoneum of Drew University of Medicine and Science has stated: \"I have been researching immunomodulators for over 30 years now and Biobran MGN-3 is the most powerful immune complex I have ever tested.\"