12/20/2024
FOOD ALLERGY IN PETS---Letās dispel the myths!
A few days ago, I checked a Golden Retriever with skin problems where the owner had a blood test for food allergies performed before seeing me. Please, everyone rememberāthere is no blood, skin, hair, or saliva test for food allergies in pets that is valid! Please do not spend your money on these tests! There is something about a printed laboratory result that leads people to believe the results-just because a laboratory offers a test does not mean it is valid. In fact, when you question the lab about the validity of blood testing for food allergy in pets, you often donāt get an answer! THE ONLY WAY TO DETERMINE IF YOUR DOG OR CAT IS FOOD ALLERGIC IS TO FEED A PRESCRIPTION OR HOME-COOKED HYPOALLERGENIC DIET FOR 8 WEEKS. The definition of a hypoallergenic diet is feeding a protein that your pet has never been exposed to previously. Another option is a protein hydrolysate diet (prescription) which consists of a soy, chicken, or fish protein that has been hydrolyzed or cut down in size so that the body doesnāt recognize it as soy, chicken, or fish. If performing a home-cooked diet it should be done under the supervision of your veterinarian.
Clients think that food dyes or additives are often the culprit for allergies. But it is most commonly the protein source that the pet is allergic to such as beef, chicken, or dairy but some carbohydrate sources such as wheat and corn contain protein as well.
Another frequent question is about using ālimited ingredientā over-the-counter (OTC) diets. Studies show that 80% of them are contaminated with other proteins so the ālimited ingredientā is not solely that protein that is listed on the bag. The difference between ālimited ingredientā OTC diets and prescription (Rx) hypoallergenic diets is that the prescription diets have a DNA test during manufacturing and upon completion to be sure they are not contaminated with other proteins. This is why Rx diets tend to cost more than OTC dietsā¦and for good reason!
If your veterinarian has suggested your pet could be food allergic (symptoms can include itching, ear infections, recurrent skin infections, diarrhea, vomiting, belching) and they have started your pet on a prescription diet please do not give any other foods, treats, bones, rawhides, pig ears, flavored supplements, or dental chews. One mistake such as a treat given by the mailperson will set the pet back a good 2 weeks! We want to do this 8-week diet trial correctly and want to only have to do it once! If you have multiple pets, sometimes itās easier to put all the pets on the Rx diet for the 8-week trial so that the affected pet doesnāt get any of the other petsā food.
Always consult your veterinarian as to whether your pet could be food allergic and which diet is best for them-they know your petsā history and can make a good recommendation!