Forgot about this thread. But yes I was referring largely to phyto-estrogen, just a vague word choice. Which regardless of perceived benefits in one area, also disrupt the natural hormonal process. I hadn’t considered the prevalence (or not) of breast cancer, but I had heard a connection between Japanese high consumption of soy and the extremely low sex drive and birth rate of the Japanese population. Could have both effects.

One of the things I didn’t mention though that is also related to soy is the degree of Round Up in our food. My father did crop insurance adjusting for some time and one of the things he found is that certain crops won’t mature fast enough but need for the plant to be dead in order to harvest. So literally right before they plan to harvest, it’s apparently a common practice to soak the entire crop in some form of serious herbicide to kill everything. This gets absorbed into the soybean (and a few other crops are particularly bad in this regard). I saw a video at some point of someone breaking this down and they just tested some generic food that was heavy in soy for a dominant toxic herbicide. Above the “considered safe” levels. I don’t know how bad this is in different degrees/quality of soy or where it is sourced, but there just seems to be a *lot* of reasons to stay away from it from what I’ve found.