Soybean oil *aka vegetable oil* contains phytoestrogens that can either mock estrogen or disrupt the natural production of it. I recently read several articles claiming it may interfere with testoster... View MoreSoybean oil *aka vegetable oil* contains phytoestrogens that can either mock estrogen or disrupt the natural production of it. I recently read several articles claiming it may interfere with testosterone production in men and reproductive health in premenopausal women. It's hard to know what is true or false in the medical community but it's worth some independent research as popular as fried food is.