 So I might sprinkle a little cheese on it or throw a couple of pieces of chicken in there to get her started. But if she doesn't want to eat, pick up the food and try again when the cafeteria opens in 12 hours. Speaking of kibble and all that and pre-arena stuff, 401 says, what's the doctor's opinion on grain-free kibble for dogs? My vet suggested I take my dog off a grain-free diet.