Since the change my dogs have been itchy, belching, barfing, and have had loose stools, lost the sheen in their coat and on top of it all THEY STINK SO BAD!!!! My lab mix has a special smell that he has NEVER had before eating this food! If Pro Plan wold have left the formula alone, my dogs would be fine. Now I have to find a new food to suit both of my dogs! Don't buy this stuff!