To determine if your cat has a food allergy or food intolerance, your veterinarian can conduct a diet elimination trial. The goal of the trial is to identify, and then eliminate, the food source that is triggering your cat’s allergic reaction. If your pet responds favorably to the diet trial and the symptoms disappear, food allergy or intolerance is the likely cause.
Bear in mind that food allergies cannot be diagnosed on the spot. A diet elimination trial typically lasts 8–12 weeks, with the exact time frame determined by your veterinarian. You will need to carefully follow the diet plan recommended for your cat. During the trial, this special diet must be fed exclusively.