P. D. Mangan breaks down the dangers of soy for us in a recent post:
“Some studies have found the effects on male hormones such as testosterone to be minor, others have found a larger effect. The larger point, however, is that because phytoestrogens bind and activate the estrogen receptor, they don’t need to change male hormones to have a feminizing effect.
Large amounts of soy can lead to a complete loss of manhood and gynecomastia (man boobs).
Phytoestrogens in soy can disrupt the endocrine system in fetuses and infants, leading to lifelong reproductive problems in both men and women, and can alter the developing brain.(Source.) Consumption of tofu is associated with decreased cognitive function in adults.
Soy simulates the growth of estrogen-dependent breast tumors in a dose-dependent manner, so soy products may cause cancer.
Men who consumed large amounts of soy had lower sperm counts. “In the multivariate-adjusted analyses, men in the highest category of soy food intake had 41 million sperm/ml less than men who did not consume soy foods.”
Soy suppresses thyroid function and is a goitrogen. As someone who’s had hypothyroidism, I can say that you really, really don’t want that to happen.
The Really Ugly
The really ugly part of soy is that Big Food puts it in everything, and as we saw above, the FDA approves of it, and so large numbers of people are consuming large amounts of soy.
Could that be responsible for the general feminizing of men that so many have noted?”
I am not a fan of soy, to be sure. When I discovered the many problems associated with this ridiculously common food ingredient, I started deliberately avoiding it. The hardest part for me was skipping store-bought mayonnaise. Making mayo at home is like alchemy: it’s easy to mess up unless you know all the secret words, perform it during the right phase of the moon, and don’t make a single mistake while mixing in the newt’s eyes and black cat hair.
Fortunately, my wife is pretty good at it, so I have yielded this bit of dark science to her.
I recommend reading all of Mangan’s post – it’s eye-opening.
If you’re a man and want to consume a bean that does the opposite of soy, grow these.
*Image courtesy T. Hagihara. CC License.