Reduces cholesterol absorption. Protects the immune system. Enhances prostate health. Beta-Sitosterol, a natural plant wax, reduces the absorption of dietary cholesterol by the body. It also stimulates the TH1 part of the immune system (which fights infections), whilst suppessing the TH2 part (TH2 causes allergies and inflammation). In men, Beta-Sitosterol also helps reduce the conversion of testosterone into DHT (di-hydro-testosterone), thereby protecting the prostate.