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 are common foods dogs are allergic to?
The most common allergens are beef, dairy, wheat, egg, chicken, lamb, soy, pork, rabbit, and fish. And, most dogs are usually allergic to more than one thing.
How long does a food allergy take to show up in dogs?
In more severe cases, your dog may have an immediate reaction, breaking out in hives, swelling, and vomiting shortly after ingesting the allergen. In many cases, however, it can take several minutes or hours, or as many as 14 days for your dog to start presenting symptoms.
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