Agaricus blazei extract is extracted from agaricus blazei fruit, containing plenty of protein, amino acids and polysaccharides. The main active ingredients of agaricus blazei extract are polysaccharides and steroids. The beta-glucan(a kind of specific polysaccharides) of agaricus blazei is anti-tumor and can restrain the tumor cells. Agaricus blazei polysaccharides extracted with hot water have strong anti-cancer activity, strengthen the body and supply the energy, lower blood sugar, blood pressure, and blood cholesterol levels. And it also can improve hardening of arteries. And steroids  nucleic acids, lipids and lectin in agaricus blazei extract are known to have cancer  inhibition properties as well. Agaricus blazei extract can make spleen and kidney healthier and improve arteriosclerotic. It strengthens anti-cancer activity and restrain tumor cell growth. And agaricus blazei extract is also believed with the function of lower blood sugar, improve diabetes, lower cholesterin and improve arteriosclerotic. Dr. W. J. Sinden from University of Pennsylvania and Dr. E. D. Lambert from Lambert  Laboratories were the first to present their research results on medicinal compounds of  agaricus blazei. Their presentation attracted attention of the medical community to this  mushroom. Former President Ronald Reagan used this mushroom to fight his skin cancer, which made agaricus blazei extract more popularly used in health care products.