Just like humans, dogs can develop allergies to a variety of foods. In many cases, dog allergies are caused by the proteins in certain meats and/or the naturally occurring proteins found in some plants, such as wheat. In people, food allergies often manifest in the form of gastrointestinal (GI) issues, such as vomiting and diarrhea (think shellfish allergy.) In dogs, however, allergy symptoms tend to be skin-related, such as persistent itching, recurrent ear infections, or skin infections.
