5 Things you should Know about Food Allergies in Pets

by admin

Posted on October 31, 2015, 2:19 am

Do you suspect your furry friend has a food allergy? Food allergies can be hard to diagnose, and even harder to treat. Here are five things you should know about food allergies in pets.

1. Pets that suffer from food allergy can show different symptoms

Some cats and dogs have tummy problems, such as intermittent vomiting and diarrhoea or weight loss. But often these signs are not there every time they eat, especially as they tend to develop and worsen over time as the reaction to the food builds up.


In other pets, food allergies can cause itchy skin. They might lick their feet, get ear infections, drag their bottom on the ground (and get frequent anal gland problems) or they scratch their skin all over. Cats strangely enough will often just get itchy around the head and neck when they develop a food allergy.

2. Cats and dogs are not born with food allergies

Food allergies usually don’t begin until a year of age. and they tend to develop to something your pet has been eating for a while.

3. Simply cutting out grains is usually not the solution

The first step to working out what your pet can digest safely is to go back to basics and do an elimination diet. A home cooked elimination diet involves using a novel or new protein your pet has never had before, then combining it with a low allergen carbohydrate like sweet potato. Simply cutting out grains is not usually the solution, since red meats and chicken or corn are the more common allergens. Gluten intolerance is really a human condition!

Some examples of proteins you can use as part of an elimination diet include kangaroo, venison, rabbit or salmon. Avoid any pet meats that contain sulphur preservatives and make sure you cook any mince or fish that you use.

The other way to do a food trial is to use a diet like Hills Z/D, or Royal Canin Hypoallergenic. These prescription diets are much better for fussy pets who may decide half way through your food trial that they don’t like rabbit anymore. There are also cat versions available.

4. Food trials must last for at least 8 weeks

In order to successfully determine exactly what your pet is allergic to, a food trial must be undertaken for at least 8 weeks. During the trial, avoid treats, flavoured worming tablets, rawhide chews (and preferably any other chews or bones), table scraps and keep your pet away from the kitchen while you are cooking. If you drop some food and your pet manages to eat it, you need to start all over again!

At the end of the 8 weeks, reintroduce the old food to see if the symptoms recur. This phase is pretty important, since many allergies will fluctuate, or you may get a partial improvement, that is only obvious once you reintroduce the old diet again. Unfortunately many pets have a food allergy, as well as an allergy to pollens, dust mites or environmental allergens, so while changing the food can help, it may not solve the problem entirely.

5. You need to make sure your pet’s new diet is nutritionally balanced

If your elimination diet was home-cooked food, you really should switch to a nutritionally balanced diet after the food trial. You can switch to diet that includes limited ingredients, such as Ziwi Peak, or you can ask a veterinary nutritionist to formulate a balanced long-term diet. .If you have chosen one of the prescription diets from Hills or Royal Canin you can continue feeding this long-term, since it’s perfectly balanced and great for your furry friend.

If you suspect your pet does have a food allergy, have a chat to one of our vets and they can assist you in working out what will suit your pet and of course check for any other diseases that cause similar symptoms to a food allergy.

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