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.
How can you tell if your dog is allergic to food?
Most Common Signs of Food Allergies in Dogs1Itching (aka pruritus)2Sneezing.3Itchy paws.4Hot spots.5Skin rashes.6Scaly and/or oily skin.7Pigmented skin.8Leathery skin texture.Dog Food Allergies Causes and Cures
How long does it take for food allergy to show up in dogs?
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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