In the dog, the signs of food allergy are usually itchy skin or digestive disturbances such as vomiting or diarrhea. Other more subtle changes can also occur, including hyperactivity, weight loss, lack of energy and even aggression.
What is the most common food allergy in dogs?
Dogs are most commonly allergic to the following foods (in descending order): beef, dairy, wheat, egg, chicken, lamb/mutton, soy, pork, rabbit, and fish. Rabbit and fish are by far less common food allergens than the others.
How long does it take for a dog to react to a food allergy?
Skin issues: Hives, also known as urticaria, may pop up 6 to 24 hours after your dog eats the food they are allergic to. If your dog has short hair, these itchy red bumps are easier to see. Otherwise, you may have to feel for them. In cats, skin irritation may take longer to see.
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