Why do probiotics cause intense stomach aches in some people but not others? Is it because the body is not used to them?


Q: Why do probiotics cause intense stomach aches in some people but not others? Is it because the body is not used to them?
 

A: Each person’s body is different and tolerance to supplements can vary a great deal, so what is beneficial to one person may not be so to another. In the case of probiotics, some people can get diarrhea while others get constipation.