Yeast beta-glucan
In the 1940s, Dr. Pillemer first discovered and reported that there was a substance in the yeast cell wall that had immune-boosting effects. Later, after further research by Dr. Diluzio of the University of Tulum, it was found that the immune-boosting substance in the yeast cell wall is a polysaccharide – beta-glucan, and this substance was isolated from bread yeast.