Researchers confirmed the presence of anti-aromatase chemicals in white button mushrooms. The chemical found called conjugated linoleic acid has previously been found to have anti-cancer properties. In mice, these compounds stopped the growth of breast cancer cells.The mice that were fed mushroom extract had a 58 percent reduction in breast tumor growth.
They tested other mushrooms and found that although white button mushrooms had the strongest effect, shiitake, portobello, crimini, and baby button mushrooms also had significant anti-aromatase effects.
