Q. Have u ever heard of any dogs getting diarrhea from Canadea dog food! I switched my dog from purina one to Canadea about 8 m ago , and he got diarrhea
A. Just because it's a high quality dog food does not mean it will automatically agree with your dogs tummy. Maybe your dog needs a special diet. I think a diet change is in order if the diarrhea is consistent. Try something like Taste of the Wild, Orijen, Ziwipeak, Honest Kitchen, etc.
You should also GRADUALLY switch your old kibble to your new kibble. Add a little bit of new kibble to your bowl of old kibble, and reduce the amount of old kibble every day. Just a little bit at a time. Try gradually switching over the course of at least two weeks.