While some studies showed soy offers a protective effect against breast cancer, a few studies showed the estrogen-like effects in isoflavones may be harmful for women with breast cancer.

• 尽管一些研究显示大豆提供了对乳腺癌的保护效应，但仍有一些研究说异黄酮中雌激素作用可能对患有乳腺癌的女性有害。