For the past 3 weeks to a month Finn has had diarrhea and we're having trouble pin pointing the cause. We started switching his food by slowly mixing in the new kind and he was fine, then after getting neutered the vet put him on antibiotics as well as glucosamine supplements for his hips and next thing we know he has diarrhea. We finished the food switch so he is now eating only the new food, then we stopped the antibiotics and I even cut back on the supplements giving him half a tablet instead of a whole one and he still has loose stool. I've now stopped the supplements for the time being and tried adding yogurt to his meals and nothing helps. He had one or two semi normal stools over the past week but the rest are not so good. I don't know if his system has still not recovered from the antibiotics, if the supplements were to blame or if it's his new food even though it didn't bother him until about the same time he started taking the antibiotics. Any suggestions?