Can My Dog Be Allergic To Dog Food: Exploring The Link Between Canine Diet And Allergies

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Can my dog develop an allergy if it always eats the same food?

As a dog breeder and cynologist, who constantly travels around the world to meet with pet lovers, I have seen countless dogs suffer from allergies. Allergies in dogs are quite common, and they can be caused by a variety of things including food, pollen, dust, and more. In this blog, I want to focus specifically on food allergies and answer the question: Can a dog develop an allergy if it always eats the same food?


Recognition of Dog Allergies

Dog allergies are a common condition that occur when a dog's immune system overreacts to something it is exposed to, such as food, pollen, dust, or other environmental factors. Allergies in dogs can cause a range of symptoms, including itching, hives, redness, hot spots, ear infections, brown tear stains, diarrhea, and vomiting. It's important for pet owners to be aware of the symptoms of dog allergies and seek veterinary care if their dog is showing signs of an allergic reaction. Proper diagnosis and management of allergies can help improve a dog's quality of life and prevent further complications.


Can a dog develop an allergy to its food?

Just like humans, dogs' immune systems can change over time, causing it to recognize previously tolerated food ingredients as allergens, which can lead to an immune response. This response can cause symptoms such as itching, skin irritation, digestive problems, and more. Food allergies can develop at any time in a pet's life, and it is not always predictable.


Causes of food allergies in dogs

It is not the food itself that is to blame for a dog's allergy. Food allergy occurs because of the dog's immune system's reaction to a particular component in its diet. This can happen due to various factors such as genetic predisposition, exposure to environmental allergens, and changes in the immune system. A food allergy is not caused by food problems, but rather by the dog's body's reaction.


Allergic reactions in dogs

Some of the most common symptoms of dog allergies include itching, gastrointestinal upset, skin inflammation, brown tear stains, and ear infections. However, these symptoms can also be indicative of other health issues, so it's important to consult with your veterinarian. If you suspect that your dog may have a food allergy, it's important to take action to identify the problem.


Diagnostic methods for dog allergies

To diagnose a food allergy in your dog, your veterinarian may recommend an elimination diet for food intolerance. This involves feeding your dog a novel protein and carbohydrate source that they have never eaten before for a period of time to see if their symptoms improve. If symptoms improve, your veterinarian may recommend gradually reintroducing your dog's previous food sources to determine which ingredient is causing the allergy.


Other diagnostic methods may include blood tests or skin allergy tests, which can help to identify the specific allergen affecting your dog. However, it's important to note that these tests are not always reliable for diagnosing food allergies.


It's also important to note that food allergies are different from other types of allergies, such as environmental allergies or flea allergies. Environmental allergies are typically characterized by itching, redness, and irritation of the skin, whereas flea allergies are often characterized by intense itching and irritation around the base of the tail or on the hind legs. If you suspect that your dog may be suffering from allergies, it's important to work with your veterinarian to determine the best course of action to identify and treat the underlying cause.


Preventing food allergies in dogs

Feeding your pet a balanced and hypoallergenic diet that meets their specific nutritional requirements is crucial for their overall health and wellbeing. It significantly reduces the risk of developing food allergies, especially when selecting a low-risk protein source such as salmon, whitefish, lamb, or insects in both dry food and treats. One such example of a balanced and hypoallergenic diet is Nature's Protection Superior Care, specially formulated to provide complete and balanced nutrition while minimizing the risk of food allergies.


Rotating dog food

Veterinary specialists do not have a unanimous opinion on the best feeding method. Some argue that continuous feeding of the same diet throughout the pet's life can reduce the risk of developing a food allergy because the animal's body becomes familiar with the components and is less likely to mount an immune response. Others believe that by changing the pet's diet and introducing them to different ingredients, it is possible to avoid food allergies and provide them with a more varied source of nutrients.


Ultimately, the decision to feed the same diet continuously or change the food will depend on the individual needs and health history of your pet. It is best to consult with your veterinarian to determine the best method for your pet's health and well-being.


Introducing new food to dogs

If you decide to rotate the food, I recommend to switch it gradually over a period of 7 days to avoid digestive upset and stress. Here's a scheme for switching your dog's food in one week:


  • Day 1-2: Start by mixing 75% of the old food with 25% of the new food.
  • Day 3-4: Mix 50% of the old food with 50% of the new food.
  • Day 5-6: Mix 25% of the old food with 75% of the new food.
  • Day 7: Feed 100% of the new food.


Remember to monitor your dog's reaction to the new food during the transition. If your dog shows signs of discomfort or digestive upset, slow down the transition by adding an extra day or two at each stage of the process, and extend this period for 2 weeks.



Food allergies in dogs can be a frustrating and uncomfortable experience for both pets and their owners. It is essential to pay attention to your dog's symptoms and seek veterinary advice promptly. To avoid food allergies, a hypoallergenic, nutritious and balanced diet for dogs is crucial. In cases where food allergies have already developed, an elimination diet can help to identify the offending allergen.


Veterinary care for dog allergies is also essential. Your veterinarian can help you determine the underlying cause of your dog's symptoms and develop a treatment plan. They may recommend diagnostic testing such as blood work or skin testing to determine the specific allergens that are causing your dog's symptoms. In addition, your veterinarian can provide guidance on dietary changes, prescribe medications to manage symptoms, and offer advice on environmental changes that can help reduce exposure to allergens. Regular check-ups with your veterinarian can also help monitor your dog's progress and adjust their treatment plan as needed. With proper veterinary care, you can help your dog live a happy, healthy, and comfortable life despite their allergies.


With balanced nutrition, proper skin and coat care, and attention, you can manage your dog's allergies and ensure they lead a healthy and happy life.

Breeding dogs for more than 35 years brought me to my mission – to understand and create the best products for pets. I’m ready to share my long-tested and thoroughly created pet care system with you!
- Janita J. Plunge

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