I have a problem with processed food in general. I prefer to take my protein from chicken and fish, and my oil from veg oil or olive oil. I stay away from anything that has soy in it.
I read an article on soy recently, I don't remember the details, but soy is enforced on us by the capitalist system. It's a quick and cheap fix to everything. It's used to make protein, oil, animal food, etc... Almost everything we buy today has soy in it in one form or another. Industrially farmed animals are very likely to be fed by soy, so the milk, eggs, meat, etc, are directly related to the economics of soy.
That's why there is such a big interest in soy. It's money. I would imagine most of the research on soy is probably sponsored by the soy producers to tell us how good soy is. But, they will forget to mention that one of the main reasons why the Amazon is gone is soy.