Instruct: Classify Amazon reviews into positive or negative sentiment
Query: My son loves it but....,

or should I say his poor butt. I think it has caused him to have frequent, loose BM's. Too much info, I know, but he took the stuff three days in a row (AND LOVED IT), but then started having bowel issues. I'm not sure if it's related, but I would imagine this stuff could have a laxative effect. I stopped giving it to him. I'll update when we try it again.