Food allergies in dogs are quite common and can manifest in various ways. Some signs that your dog may have a food allergy include itching, skin rashes, ear infections, gastrointestinal issues like diarrhea or vomiting, and even chronic anal gland problems. To determine if your dog has a food allergy, you can try an elimination diet. This involves feeding your dog a novel protein and carbohydrate source that they have never had before, such as duck and potato, for around 8-12 weeks. If the symptoms improve during this period and reappear when the old food is reintroduced, it's likely your dog has a food allergy. Another option is to consult with your veterinarian who may recommend allergy testing or a prescription diet to identify the specific allergen.

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Dog Care Veterinary Care Elimination Diet Food Allergy