Naturals Lamb Meal & Rice? Changed slowly 75% old To 25% new he seems to itch some not alot just enough. Brushing up against bushes stuff like that. I,m not too worried yet to take him to the vet. Dont see any sploches or anything. I hope he isnt allergic to the ingredients. Could it be the change to the (better) food thats doing it until all the iams is out of his system.