From the first day we brought Owen home he had loose stool. We did fecal tests to make sure it was nothing sinister and they all came back negative. So we started the long journey of gradually trying him on a number of different foods to see which one would sit best with his obviously sensitive stomach – it seemed like none were going to work for him. It became clear that he had food allergies because some of the foods made his skin itchy and dry. A couple of months ago he turned one and knowing it was time to upgrade from puppy food to adult food we decided we might as well start again from the top. We put him on Wellness kibble - thankfully his stool immediately normalized and his skin recovered fully. Maybe you will have to go through a similar process. Best of luck 