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I'm a fan of Kresser, but I think he and the other "paleo" or former paleo guys went a little overboard with the soy witch hunt. I looked into it after Soylent changed from rice to soy protein. Really not too much supporting evidence for all this fear of estrogen and man boobs.

Edit: I agree that processed soy shouldn't be a "main" diet ingredient. But these guys freak out over using a little soy sauce.

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I hear you. I find Kresser is generally pretty careful and evidence-based, but there is definitely a subset of the Paleo community that is uncritical and dogmatic.

For the record, soy sauce is fermented, which makes it relatively safe to eat. As Kresser points out in the article, fermentation significantly reduces soy's antinutrients.

Well, I think I've seen it with my own eyes.

I have 3 teen boys, all breastfed as babies. For one of them, him mom went nuts with soy milk right after his birth. (a screwy doctor suggested it) She drank crazy amounts of it. Sure enough, that boy clearly has boobs, and the others (same parents) do not.

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