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Understanding Dog Food Allergies: Symptoms, Causes, and Treatments
Dr. Michel Selmer, DVM, discusses dog food allergies and how a simple blood test for pets can now reveal so much info.
Veterinarian

Introduction to Dr. Selmer’s Insights on Dog Food Allergies
As mentioned last week, Robbin and Joseph Everett, hosts of the live radio show "Pets Teach Us So Much," have allowed us to publish part of their interview with Michel Selmer, DVM, who specializes in holistic and integrative care and pet nutrition. Today, Dr. Selmer discusses: Dog food allergies A simple new blood test that identifies allergens
Tune in and Learn More from Robbin and Joe
We would like to give another big thanks to Robbin and Joe. Here’s how you can stay connected and learn more: Visit their blog Like their Facebook page
- Tune in to their radio show — the number-one rated web-based radio show for animal lovers
For more on the benefits of a natural diet for pets, check out this article on Petful.
Dr. Selmer’s Insights on Dog Food Allergies
Dr. Michel Selmer, DVM, shared valuable insights into how nutritional therapy can transform pets suffering from allergies. He emphasized the importance of identifying food allergies through a simple blood test, which detects antibodies to specific food items. Key Points:
- Nutritional Therapy: Dr. Selmer has witnessed dramatic transformations in dogs simply by correcting their diet, eliminating the need for medications.
- Common Allergens: Grains like corn, wheat, and barley are common in commercial dog foods but are not suited to a dog’s natural diet. Dogs thrive on a high-protein diet similar to what they would eat in the wild.
- Natural Diet: A 75% protein diet, with the remaining 25% consisting of fats and carbohydrates (like fruits and vegetables), is recommended.
- Food Sensitivities: Even foods considered healthy, like carrots, may cause allergic reactions in some dogs. Every dog is unique, and what works for one may not work for another.
- Blood Testing: Modern blood tests can now identify food allergies in dogs without the need for invasive skin tests. These tests are becoming more mainstream and are even used in human medicine, although they were initially developed for animals.
This summary retains the essential information while making it easier for readers to digest the key points without getting lost in the back-and-forth dialogue.

Common Symptoms of Dog Food Allergies
Dog food allergies can manifest in various ways, making it crucial for pet owners to recognize the signs early. Common symptoms of dog food allergies include:
- Itchy Skin: Dogs may scratch, lick, or chew at their skin excessively, leading to hot spots or infections.
- Digestive Issues: Vomiting, diarrhea, and flatulence are common gastrointestinal symptoms.
- Ear Infections: Recurring ear infections, particularly in dogs prone to allergies, may indicate a food allergy.
- Chronic Paw Licking: Constant licking or chewing of paws is another telltale sign of food allergies in dogs.
- Red, Inflamed Skin: Allergic reactions often cause redness and inflammation, especially around the face, paws, and belly.
How to Diagnose Food Allergies in Dogs
Diagnosing dog food allergies requires a systematic approach, often starting with a visit to your veterinarian. Here's how food allergies in dogs are typically diagnosed:
- Veterinary Examination: A thorough examination is necessary to rule out other potential causes of symptoms, such as environmental allergies or parasites.
- Elimination Diet: A veterinarian may recommend an elimination diet, where your dog is fed a limited-ingredient or hypoallergenic diet to identify the allergen.
- Food Trials: After a period on the elimination diet, specific foods are reintroduced one at a time to pinpoint the allergenic ingredient.
- Blood Testing: Although less common, blood tests can be conducted to identify specific food allergies in dogs.
Managing Dog Food Allergies Through Elimination Diets
Managing dog food allergies often involves implementing an elimination diet to identify and avoid allergens. Key strategies include:
- Start with a Hypoallergenic Diet: Use a diet with novel proteins and carbohydrates that your dog has not previously been exposed to.
- Stick to the Diet: It’s essential to avoid any treats, table scraps, or flavored medications that might contain the allergen.
- Gradually Reintroduce Foods: After the initial phase, reintroduce foods one by one to observe your dog’s reaction and identify the specific allergen.
- Monitor Symptoms: Keep a close watch on your dog’s symptoms during this process and report any changes to your veterinarian.

Hypoallergenic Dog Food Options
For dogs diagnosed with food allergies, hypoallergenic dog food can be a lifesaver. These specially formulated diets are designed to minimize allergic reactions:
- Hydrolyzed Protein Diets: Proteins are broken down into smaller molecules, reducing the likelihood of triggering an allergic response.
- Novel Protein Diets: These diets use uncommon protein sources like duck, venison, or kangaroo that your dog is less likely to have been exposed to.
- Limited Ingredient Diets: With fewer ingredients, these diets reduce the risk of exposure to potential allergens.
- Prescription Dog Food: Available through your veterinarian, these diets are specifically designed to manage food allergies.
The Role of Genetics in Dog Food Allergies
Genetics can play a significant role in whether a dog develops food allergies. Understanding the genetic predisposition can help in managing and preventing these allergies:
- Breed Susceptibility: Certain breeds, such as Labrador Retrievers, Boxers, and Cocker Spaniels, are more prone to developing food allergies.
- Inherited Traits: If a dog’s parents or siblings have food allergies, there is an increased risk that the dog will also develop them.
- Early Intervention: For dogs at higher genetic risk, early dietary management and regular monitoring can help prevent the onset of food allergies.
An Important Note on Raw vs. Cooked Diets
The benefits of raw diets versus cooked diets for dogs remain unproven, with ongoing research in the field. However, there are definite health risks associated with feeding your pet raw food. Key points to consider:
- Health Risks: Raw food diets pose health risks for both animals and humans.
- Ongoing Research: The benefits of raw diets versus cooked diets are still being studied.
- Veterinarian Consultation: Always consult your veterinarian before making dietary changes.
For more details on these risks, see Don’t Give That Dog a Bone by Dr. Debora Lichtenberg, VMD.
Frequently Asked Questions (FAQ)
Frequently Asked Questions
Dog food allergies typically take 8 to 12 weeks to clear up once the allergen is removed from the dog’s diet.
The best dog food for dogs with allergies is a hypoallergenic diet, often containing hydrolyzed proteins or novel protein sources like duck or venison.
Limited ingredient diets and hypoallergenic dog foods are good options for managing allergies in dogs.
References
- “Food Allergies in Dogs.” VCA Animal Hospitals. https://vcahospitals.com/know-your-pet/food-allergies-in-dogs
- “Dog Food Allergies: Symptoms, Causes, and Treatment Options.” American Kennel Club (AKC). https://www.akc.org/expert-advice/health/dog-food-allergies/
- “Food Allergies in Dogs: Symptoms, Diagnosis, and Treatment.” PetMD. https://www.petmd.com/dog/conditions/digestive/food-allergies-dogs

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Veterinarian
Over the past 10 years, the Petful® veterinary team of writers has included a number of experts, such as veterinarians Dr. Pippa Elliott, BVMS, MRCVS; Dr. Debora Lichtenberg, VMD; Dr. Phil Zeltzman, DVM, DACVS, CVJJ; and Dr. Judy Morgan, DVM, CVA, CVCP, CVFT; among others. Providing accurate, trustworthy information is our utmost concern, so all of our pet health content is regularly reviewed, updated and edited by veterinary professionals. Learn more about Petful.

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