People of Asian nations consume quite a bit of soy and the population of those nations isn’t lacking. Many people are lactose intolerant and some are found to have milk allergies in infancy. Soy formula is then given. Doctors don’t like lawsuits so that practice would have stopped long ago if soy was dangerous. Animal milk is from a living creature and a lactating one at that so full or hormonal issues. Be aware of what you eat and introduce new foods slowly so you can see how they personally affect you. Some thrive on soy and some do not. Take a test drive and discover what works for you as an individual.