Yep, Chattiesmom is so right! Cali would do the same thing.
So I put down several bowls with a little in each one and watched which one she liked. Then I watch for an GI problems, like diarrhea. I have found ghatnincan change the protein around with Fromm and it does not seem to upset my Cali's tummy, that being said all dogs are different.
Good luck