Agaricus bisporus is an edible mushroom native to grasslands in Europe and North America. It has two color states while immature—white and brown—both of which have various names. When mature, it is known as portobello mushroom.
White button mushroom (Agaricus bisporus) exhibits antiproliferative and proapoptotic properties and inhibits prostate tumor growth in athymic mice.
White button mushroom phytochemicals inhibit aromatase activity and breast cancer cell proliferation.