Continued Soy's Not All Bad. For example, since isoflavones can bind to estrogen receptors on breast cells, they prevent a woman's own, more potent, estrogen from taking that spot. One caveat: some soy products contain estrogen-like chemicals that could have adverse effects.
Over 26,000 men were followed and those eating a diet high in fiber, soy, fruits and vegetables and low in saturated fat, animal protein and dairy had the lowest rate of prostate cancer. Soy milk even has several health benefits. Fortunately, research has shown that the phytoestrogens in soy milk do not add to estrogen levels in the blood. So stay away from soy isoflavone supplements and foods made with textured vegetable protein and soy protein isolate, found in many protein powders and nutrition bars. Derived from soybeans, soy is a high-protein substance found in many foods, such as edamame, tofu, soy flour, and soy milk. This is a healthy dairy alternative for the vegan diet. The soy products such as soya chaap or soy milk, that are most consumed forms of soy are processed and they may pose some risk on one’s health. Isoflavones, which are found in soy, are plant estrogens. Soy milk is non-dairy or plant-based milk which is made from soybeans. High levels of estrogen have been linked to an increased risk of breast cancer. Estrogen-responsive postnatal development was compared in infants exclusively fed soy formula, cow-milk formula, and breast milk. Here's the Truth About Soy and Prostate Cancer ... says Men’s Health nutrition advisor Mike ... That’s because prior data has shown that soy doesn’t actually increase levels of estrogen … For example, one animal model published in the Journal of Endocrinology found that soy phytoestrogens reduced … According to a review from the December 2014 issue of German Medical Science , the evidence for isoflavone as a hormonal replacement is lacking. Many people add soy to their diets for health benefits.

Because of the effects of soy milk on estrogen levels and testosterone, many people wonder: Is soy milk bad for men? Estrogen is vital for men’s health. If an infant is not receiving breast milk (either its mother’s or a donor’s), cow’s milk–based infant formula is the first recommendation. Research on the subject has turned up conflicting findings, revealing that there are both positive and negative aspects of soy when it comes to men’s health. The debate of soy milk danger stems from researchers who say that the aforementioned isoflavones, often praised as being the main contributors to men’s health…

It is responsible for muscle mass and strength, as well as libido. Soy's earlier promise as a health food has been dimmed somewhat by the results of more recent research. Testosterone is a hormone found primarily in men that is produced in the testes. The few human studies testing the effects of soy intake on estrogen levels found that soy had little to no effect on estradiol levels in men. But if some studies point to dangers from soy, others suggest important benefits. The man told doctors he was drinking 3 quarts of soy milk … Research has shown that soy can lower cholesterol. That's where the fear over soy milk and men comes from, the idea that the phytoestrogen will increase estrogen levels and decrease testosterone levels. In 2009, Men’s Health magazine ran an article about the man in question, asking if soy was “the most dangerous food for men.” The article follows his cascade of dramatic symptoms — hair loss, erectile dysfunction and even mood changes.

The phytoestrogens in soy have a structural similarity to estradiol, the main estrogen in both men and premenopausal women, so it’s not uncommon to come across advice that men …
Methods: We enrolled 410 infants born in Philadelphia-area hospitals between 2010 and 2014; 283 were exclusively fed soy formula (n = 102), cow-milk formula (n = 111), or breast milk (n = 70) throughout the study (birth to 28 or 36 weeks for boys and girls, …