Quote Originally Posted by borzoimom
Wolf King is not the same as solid gold. Try Solid gold Lamb or holistic. wolf king as more grains and less protein.. also- eating too much can make gas..
I might be wrong, but Solid Gold makes Wolf King. Solid Gold Wolf King, bison and salmon based, and Solid Gold Hund-n-Flocken, lamb based, are 22% protein and their holistic formula, all grain with some fish meal, is 18%.

If you're going for more protein and less grain I would think that Wolf King is a great mix of the lamb and holistic.

As to the question, there he may have developed a food allergy, or maybe there is something else causing the situation. I've heard of using yogurt and I think taking him to a vet to rule out other issues is a good idea. If you really think it's the food switching him slowly to another food may make the difference. The Solid Gold lamb formula that Borzoimom recommended may be a good option.