Food allergies & insect protein

We get many questions about whether our food is a suitable choice for an allergic dog. In this article we cover some basics in allergies, and explain if an insect-based food could work for food-allergic dogs. Remember that if you have a confirmed allergic dog, a dog with suspected allergy or a dog with a special health condition, you should always consult your veterinarian before making changes to the dog's diet.

In this article we will cover:

  • What are the most common allergies?

  • What symptoms can be caused by allergy?

  • What are the diagnostic methods?

  • How does an elimination diet work?

  • What is the difference between hydrolysed and hypoallergenic protein?

  • Can petgoods insect-based food help?

What are the most common allergies?

Allergies in dogs can simply put be divided into two categories: food allergy or atopy. Atopy is an allergy to factors in the environment, such as pollen, grass, mites or mold. We will only cover food allergy in this article, but keep in mind that the dog can have both food allergy and atopy at the same time, or just one. When it comes to food allergies, the most common allergen is a protein source. According to a study by Mueller et al (2016), the most common dietary allergens for dogs are beef, dairy, chicken, wheat and lamb.

What symptoms can be caused by allergy?

Allergies can manifest themselves through either dermatological symptoms, such as itching, rashes, skin irritations, red paws and recurrent ear infections. The dog may also have gastrointestinal symptoms such as vomiting and diarrhea.

What are the diagnostic methods? 

If you suspect that your dog is allergic, it is recommended that you start an allergy examination with a veterinarian. The investigation follows several steps according to the exclusion method where you try to find out what causes the allergy, and find a treatment method that works. There are many treatment methods, but it can take some time to find the one that works best for your dog.

How does an elimination diet work?

If it is suspected that your dog has food allergy, an elimination diet is a step in the investigation towards finding out what your dog is allergic to. In these diets, food with hydrolysed protein is often used. The aim is to figure out whether your dog has food allergies, and if yes, which allergens your dog is reacting to. If your dog is undergoing an allergy investigation and specifically is put on an elimination diet, do not change food without first consulting your veterinarian!

What is the difference between hydrolysed and hypoallergenic protein?

A hydrolysed protein is a protein that is broken down into tiny tiny pieces. Thanks to this, the allergic dog's immune system does not overreact to it, because it does not recognize it as a protein. This means that allergic dogs often tolerate different types of hydrolysed food, and they are therefore used in elimination diets.

The term hypoallergenic does not have an established definition and is used  in different purposes, and can therefore be a bit confusing to the customer. Most often, what is meant is that the protein is from a more unusual source, and therefore has a lower risk of causing allergic symtoms. It could mean that the protein is hydrolysed, but there is no guarantee. Some manufactures also use the term hypoallergenic meaning that their product contains only one protein source, which can also be referred to as single protein. 

Can petgood's insect-based food help?

If a food allergy has been established with an elimination diet, the next step is usually to try to introduce a new protein source to evaluate if the dog will tolerate it. Insect protein is a new, unusual source of protein that most dogs has not been exposed to. Because of this, the risk of the immune system reacting to the protein is smaller. Insects are the only animal ingredient in the petgood diet. Our diet is not hydrolysed.

A study by Lee et al evaluated insect protein in clinical trials, where food allergic dogs were divided into groups fed different types of diets for 12 weeks. After 12 weeks, a significant improvement in dermatological symptoms was seen in the group fed the insect-based diet, i.e. the dogs had a lower incidence of rashes, redness and skin irritations compared to the control group. The study can be found here.

There is no food that will work for all allergic dogs, as all dogs are unique and their needs are different. According to current research, there is a risk of cross-reaction between insect and crustacean species, which means that dogs with known allergy to shellfish, for example shrimp, or insects, for example mites, can also react to insect protein. This is an area that is still being researched, but dog owners of mite allergic dogs should be aware that there is a risk that they will also react to an insect-based diet.

Finally, we have now straightened out some basic allergy concepts and explained why insect protein could work. And again, we always recommend you with an allergic dog to consult your veterinarian before making any changes to the dog's treatment, feeding or routines. 🐶❤

If you'd like to check out some stories from food allergic dogs that have transitioned to our food, you can read more about for example Hank, Stella and Barbie here.
itching dogKarin Veterinary Nurse

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