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My dog has food allergies. Are tests reliable to find the right food?

Updated On September 23rd, 2025

Pet's info: Dog | Bulldog | Female | spayed | 40 lbs

My bulldog is allergic to just about every food. Appoquel has been tried numerous times, but she doesn't react well on it. This article's last sentence before the summary reads: "Allergy testing is rarely done to diagnose food allergies" So does that mean the ELISA testing or any testing will not be conclusive for food allergies? I need to find something to feed her!

1 Answer

Most Helpful Answer

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Answered By Emily, DVM

Veterinarian

Published on June 18th, 2017

Food allergies are usually best diagnosed through food trials. While there are blood tests that look for food allergies they are somewhat unreliable and results can be controversial. A food trial involves putting your pet on a novel protein or hydrolyzed protein diet (and no other food at all) for at least 8-12 weeks. At that time the results are assessed. It can take 1-2 food trials to determine a true food allergy. These trials can be frustrating for owners. Another option to consider is a drug called Atopica. It can be expensive initially but it is an effective medication for allergies.

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