Can Tofu or other soy products prevent cancer or prevent recurrences?
Soy products may be protective against breast cancer. Protease inhibitors present in soy products suppress the production of enzymes in cancer cells which may slow tumor growth. Isoflavones block the entry of estrogen into cells, which may reduce the risk of breast cancer. We have no information about soy products preventing recurrence and some women are concerned that the phytoestrogen (plant estrogen) in soy may stimulate tumor growth.