Phytoestrogen Consumption and Breast Cancer Risk
Scanning quickly would give you the idea that soy intake has no effect on breast cancer risk in non-asian women. Reading further, however, you will find that this study evaluated their “usual” intake of tofu at one serving per week, which is less than the 3+ servings shown to be protective in other studies.
Am. J. Epidemiol. — Abstracts: Horn-Ross et al. 154 (5): 434