I don't know exactly what my dogs are allergic to, I can't afford the test. But I do know that when I switched to a food with no corn, wheat or by products their skin and health improved tremendously. My bully got what they call "bully bumps". They get bumps on the skin and the hair is raised where it looks like there's a tick on them, except it's all over their body. They scratch and chew nonstop. My american bulldog was gnawing at his paws so badly they were raw. After the food change they barely scratch anymore. Rachel Ray has a food calld 'Just 6', there are only 6 ingredients and you can pronounce each one. It is easy on the wallet and great for your dogs.
