Most allergies appear after the pet is six months of age, with the majority of affected dogs over age one or two.
How can I tell if my dog is allergic to his food?
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.
Can dogs all of a sudden develop a food allergy?
Year-round itchiness or chronic ear problems are key clues A true food allergy is more likely to make a dog itchy or experience recurrent ear or skin infections. In addition, a true food allergy will often occur suddenly after a dog has been eating the same food for months or years with no problems.
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