Howdy,This probably does not apply to chams but it interesting anyway. My wife has a symester left in vet school. And within the last year they have discovered that grapes can cause chronic renal failure in dogs. They have not isolated the chemical yet but have quite a few documented cases.
I was talking to a dealer/breeder at a show and he said chams won't eat fruits or veggies, or plant matter at all. I had remembered hearing different before him, so was he just ignorant?