Cats often develop "food intolerances" or "food allergies" to ingredients found in commercial cat food. Currently, the most common allergies in cats are: chicken, dairy, fish, beef, lamb, and eggs. However, an allergy can develop to any protein to which the cat is repeatedly or constantly exposed. The symptoms of food allergy are typically skin-related and/or digestion-related. Skin symptoms include rashes (particularly around the face and ears), excessive licking (typically paws, legs or tummy), and red, itchy ears. Digestive symptoms include vomiting and diarrhea. These are similar to the symptoms ...