Just to clarify my position, I agree with you that closer to natural is generally better. I changed my eating habits to great effect about 18 months ago (down 130 lbs / 14 in on my waist, A1c back to normal and off meds, cut my BP meds in half, and my lipids have all improved though they weren't high to start with). I switched to a high fat / moderate protein keto diet, and as a result ended up eating more natural and less processed foods.Redirect Notice
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Sorry I don't have time to really research that but here is some literature.
But I think a lot of fears about "bad" foods are overblown because the volume or lack of variety needed to cause issues is usually very high unless there are other issues. The body wants to be a certain way and it takes a lot of sustained effort to drive a change, for better or worse. Eating an occasional Impossible Burger as a substitute for a chicken breast sandwich isn't going to raise your estrogen. If you want to be super strict about not consuming any soy that's fine, but the effort to do that probably isn't making a measurable impact.