Recent studies regarding the effects of soy and soy based products like soy milk and tofu have caused some confusion about whether or not soy is good for men.
Soy has been a dietary staple in Asia for many centuries, and studies suggest that it may offer some cardiovascular benefits. However, the concentration of phytoestrogens found in soy, a group of natural compounds that resemble estrogen chemically, have led some to question if soy might lower testosterone levels in men and cause problems for women who have estrogen-sensitive breast cancers. Experts say that the phytoestrogens in soy mimic estrogen very weakly. Clinical studies in men have cast doubt on the notion that eating soy influences testosterone levels in any significant way.
A 2012 Journal of Oncology analysis of soy intake and breast cancer rates in women found that soy does not cause any harm. Some studies have even found that women who consume the equivalent of about one to two servings of soy daily have a reduced risk of receiving a diagnosis of breast cancer and of its recurrence. Nutrition guidelines for cancer survivors published by the American Cancer Society note that eating traditional soy foods — like tofu, edamame, miso, tempeh and soy milk — may help lower the risk of breast, prostate and other cancers. However, highly processed soy, like tofurky, and pill supplements, are not recommended. Check with your doctor before adding large amounts of soy to your diet.
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