Archie has been on Canidae since I pulled him from the shelter back in July of last year. I tried switching him first to Blue Buffalo (yeah, I know. It was out of convenience.) and he got sick. Then to Evo, and he didn't tolerate that very well, either. It's been a while now, I'm going to try again. He doesn't seem to have very many tummy issues at all, I don't know why these other foods are bothering him. Anyway, he looks great, he's maintaining a good weight, and he's active and healthy. I also feed it to my foster dogs, and the difference in their coats and skin after a short while is nothing short of dramatic.