How to be diagnosed with lactose intolerance.?

Diarrhea bloating: Bloating and gas and even diarrhea are symptoms of lactose intolerance- seen more commonly with milk than with yogurt, since yogurt has live cultures that digests some of the milk sugar. A Gastroenterologist specialist can do a breath hydrogen test to see if your breath hydrogen rises in response to a lactose drink. That is one way to confirm lactose intolerance.