They are prone to many diseases, including hip dysplasia, renal dysplasia, bloat, skin allergies, and food allergies. They can also develop protein-losing enteropathy, protein-losing nephropathy, and Addison’s disease. They commonly have protein-related illnesses, so you should guarantee that you provide them the best dog food for wheaten terriers with allergies that are loaded with protein. If they are allergic to chicken or beef, choose venison, lamb, fish, etc., as the main protein source. These meats are dense with vitamin B, zinc, and other nutrients.