It was once thought that soy foods increase the risk of breast cancer. However, eating a moderate amount of soy foods does not increase risk of breast cancer — or other types of cancer. A moderate amount is one to two servings a day of whole-soy foods, such as tofu, soy milk and edamame. Apr 29, · In fact, there is growing evidence that eating traditional soy foods such as tofu, tempeh, edamame, miso, and soymilk may lower the risk of breast cancer, especially among Asian women. Soy foods are excellent sources of protein, especially when they replace other, less healthy foods such as animal fats and red or processed thumbxxx.xyz: Stacy Simon.
Jan 15, · The "soy story" and its possible connection to breast cancer is complicated by other factors. Most women living in Asia depend on soy as their main source of protein. They consume only small amounts of beef, chicken, and pork — which means less animal fat and other possibly unhealthy substances (such as growth hormones and antibiotics) in. After the women had surgery to remove the breast cancer, the researchers compared tissue from the biopsy (before the women consumed the soy supplement) to tissue from the cancer (after the women consumed the soy). The results showed that several genes that encourage cell growth were turned on in women in the soy protein group.
The effects of soy on breast cancer risk also seem to vary depending on a woman’s age and menopausal status. Women who eat a high-soy diet during adolescence seem to have a reduced risk of breast cancer. This suggests that early exposure to soy might protect against breast cancer later in life. Soy isoflavones and risk of cancer recurrence in a cohort of breast cancer survivors: the Life After Cancer Epidemiology study. Breast Cancer Res Treat. ; Kang X, Zhang Q, Wang S, Huang X, Jin S. Effect of soy isoflavones on breast cancer recurrence and death for patients receiving adjuvant endocrine therapy.
Oct 15, · Soy has a bad rap, which has scared many folks into avoiding this plant-based protein altogether. Many believe that soy is linked to breast cancer. Dec 26, · Evidence concerning the impact of soy protein isolate on breast cancer risk consists of animal studies and human experiments. Population studies concerning any possible association between soy protein isolate and risk of breast cancer are not available, which is especially unfortunate since experimental studies have produced conflicting findings.