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Poison Soy

I last blogged about the dangers of unfermented soy here. And, actually, I'd only use fermented soy very sparingly.

Here's another article on soy (Thanks, Uwe), and interview with Kaayla Daniel. The whole thing is worth a read (though I do wish they'd ditch the exclamation marks), but what comes out most prominently is the danger of feeding infants soy-based baby formula.

Soy lowers Testosterone levels! Just about all soy products on the market contain the phytoestrogens (plant estrogens) known as isoflavones. Plant estrogens have lowered Testosterone levels in rats, monkeys, and other animals as well as humans. For grown men, this usually leads to decreased libido and lower sperm count. There's an old wives tale that Japanese women punish their straying husbands by feeding them a lot of tofu!

We can joke about that but not about the effect on baby boys fed soy formula. Pediatricians are reporting more and more cases of emasculated boys reaching puberty with breasts and tiny penises. Undescended testicles are also far more common than they were in the past. […]

Infants on soy formula are extremely vulnerable. Remember that soy formula constitutes most if not all of their diets. Based on figures from the Swiss Federal Health Service, some of my colleagues have calculated that an infant on soy formula is getting the hormonal equivalent of the estrogen found in three to five birth control pills every day! […]

Studies on rats, sheep, monkeys and other animals suggest that the estrogens in soy infant formula can irreversibly harm the baby's later sexual development. And this is exactly what we're hearing from both parents and pediatricians.

Did you know that baby boys are supposed to experience a Testosterone surge during the first few months of life and in the large amounts you'd expect from a grown man? Most people don't, but all that Testosterone is needed to program the boy for puberty, the time when his sex organs should develop and he should grow facial and pubic hair and start speaking with a deep voice. If receptor sites intended for the hormone Testosterone are occupied by soy estrogens, however, appropriate development may be delayed or never take place.

For girls, soy formula has the opposite effect. It's likely to accelerate puberty and may cause reproductive difficulties later in life. The studies which supposedly prove that infants on soy formula develop normally consider only height, weight and other measurements of growth as measured in infancy and early childhood. Many of the negative effects don't become obvious until puberty.

Folks, if you eat processed foods, you're getting a lot of soy. Even those low-carbing without a paleo approach to what you eat are getting lots of soy.

Richard Nikoley

I'm Richard Nikoley. Free The Animal began in 2003 and as of 2021, contains 5,000 posts. I blog what I wish...from health, diet, and food to travel and lifestyle; to politics, social antagonism, expat-living location and time independent—while you sleep—income. I celebrate the audacity and hubris to live by your own exclusive authority and take your own chances. Read More

6 Comments

  1. Richard A. on February 13, 2009 at 12:26

    Does soy lecithin pose similar dangers?

  2. Richard Nikoley on February 13, 2009 at 14:05

    Judge for yourself:

    "But what exactly is it? Well, it’s a substance that is extracted from soybeans using a solvent such as hexane, and it’s a by-product of soybean oil."

    "Soybean lecithin comes from sludge left after crude soy oil goes through a "degumming" process. It is a waste product containing solvents and pesticides and has a consistency ranging from a gummy fluid to a plastic solid. Before being bleached to a more appealing light yellow, the color of lecithin ranges from a dirty tan to reddish brown. The hexane extraction process commonly used in soybean oil manufacture today yields less lecithin than the older ethanol-benzol process, but produces a more marketable lecithin with better color, reduced odor and less bitter flavor."

    I'll just eat eggs.

  3. Anna on February 14, 2009 at 10:34

    There is a lot of soy in the school lunch program in American public schools. It's used as a protein extender in burgers, vegetarian entrees, burritos, poultry "nuggets", etc.

    People eat a lot more soy and soy fractions than they realize (even if they aren't purposefully choosing soy), especially if they eat prepared foods in casual restaurants, institutional cafeterias (public schools, hospitals, nursing homes, prisons, etc), and packaged supermarket food.

  4. Richard Nikoley on February 14, 2009 at 20:32

    Yep. All the more reason to stick to the basics: natural fats, meat/fish, veggies, nuts, fruit (berries, mostly).

    And send your kinds to school with the same thing.

  5. diet_pill_online on September 25, 2009 at 04:12

    Please give me more information. I love it, Thanks again.

  6. JLL on October 7, 2009 at 00:09

    I don’t know about soy in baby formulas (except that they are high in AGEs: http://inhumanexperiment.blogspot.com/2009/09/age-content-of-foods.html), maybe it does lower testosterone in babies. But in adult men, the opposite seems to be true. Soy reduces DHT but increases testosterone:

    http://inhumanexperiment.blogspot.com/2009/05/soy-isoflavones-reduce-dht-increase.html

    Now, whether you want to lower DHT and increase testosterone is a different matter — men do it to avoid hair loss — but still, I wonder where the information in the quote comes from.

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