Karen, did you ever ask them why canned food would make a cat have loose stools or diarrhea? I can't feed Alani or Blaze any kind of canned food or else it causes them to have these problems. They did have giardia as kittens before I adopted them so I don't know if this did something to their internal organs or not. They are currently eating Merrick's Before Grain Salmon flavor and also the Chicken flavor without any problems. I also give them chicken broth at night. If they eat grain free dry food that is too high in protein, this will also cause them to have loose stools or diarrhea.