Can Soy Milk Cause Upset Stomach?

Can Soy Milk Cause Upset Stomach? Soy can cause some mild stomach and intestinal side effects such as constipation, bloating, and nausea. It can also cause allergic reactions involving rash, itching, and breathing problems in some people. Can soy milk cause digestive problems? For those with lactose intolerance, soy milk may seem like a good