He has a wheat/ beef/salmon/duck allergy and his tummy gets upset & bubbly. He can only eat his food no treats. So goes where he is starving to not wanting to eat. He has had this most of his life. He has been doing well on the Blue Buffalo Lamb & rice, but manages to leave the life bits. I can feed him a handful of food and out come the life bits, that our other dog Hoover vacuums up.