-4 points
Estrogen/testosterone balance probably. There are certain dietary factors that can change this. Tofu for instance has a chemical pretty analogous to estrogen, hence the term “soy boy”
14 points
Plant estrogens, especially in the instance of soy, have been overwhelmingly shown to have no effects on our endocrine system. If growing breasts were as easy as eating tofu, a lot of transfem people would’ve been doing that over prescription meds
3 points
That logic makes a lot of sense. I only read this one scientific article which took a compilation of other findings, but it seems the short answer is: we don’t know yet and more research is needed, but if there are effects they are likely quite minimal.
3 points