Dogs, like humans, can suffer from allergies. Allergies in dogs can manifest in various ways, including skin irritation, itching, and gastrointestinal problems. While there are several medications available to treat allergies in dogs, some pet owners prefer natural supplements. In this article, we will discuss some of the best natural supplements for dogs with allergies.
Dogs with Allergies
The American College of Allergy, Asthma and Immunology estimates that 10% of dogs in America suffer from allergies but despite this statistic, not all hope is lost when it comes to providing relief.
While prescription medications and OTC topical treatments have been known to provide some respite from itching & scratching symptoms, natural supplements could make an extra impact as well.
With so many different options available, knowing which supplement best suits your dog’s needs isn’t always easy — so let’s take a closer look at how certain supplements might effectively benefit your dog the most.
Best Supplements for Dogs with Allergies
For dog owners, it’s heartbreaking to see their furry companion suffer from allergies. It affects their daily activities and overall quality of life.
Allergies in dogs can manifest in various forms, causing discomfort and distress to our beloved pets. While a proper diagnosis and treatment plan from a veterinarian are essential, certain supplements have shown promise in helping manage allergic reactions and alleviating symptoms.

While there are several medications available to treat allergies in dogs, some pet owners prefer natural supplements. This comprehensive guide explores various scientifically backed supplements, including the use of natural CBD (cannabidiol), to support dogs with allergies.
Top 8 Natural Supplements for Dogs Allergy Symptoms
1). Colostrum
Colostrum is a nutrient-rich substance produced by mammals during the first few days after giving birth. It contains immune-boosting components such as immunoglobulins, lactoferrin, growth factors and antibodies that help boost the immune system and fight off infections. Colostrum is also rich in antioxidants, which help reduce inflammation and support overall health.
A study in the Journal of Animal Physiology and Animal Nutrition found that colostrum supplementation positively influenced the immune response in dogs, potentially helping to manage allergy symptoms.
In studies, bovine colostrum (cow’s first milk) has been shown to support a healthy inflammatory response in the presence of allergens, as well as bind to and remove certain allergens. Colostrum can therefore help reduce allergy symptoms in dogs by supporting the immune system.
Recommended Product: Colostrum for Dogs
2). Omega-3 Fatty Acids
Omega-3 fatty acids, specifically EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid), found in fish oil, flaxseed oil, and other sources are essential for maintaining a healthy immune system and managing inflammation in dogs.
Omega-3 fatty acids have anti-inflammatory properties that can help reduce skin irritation and itching in dogs with allergies. A study published in the Journal of Small Animal Practice demonstrated that supplementation with omega-3 fatty acids significantly reduced the severity of skin inflammation and pruritus in dogs with atopic dermatitis (a common allergic skin condition).
Recommended Product: Omega-3 fatty acids for Dogs
3). Probiotics
Probiotics maintain a healthy gut microbiome & reduce the severity of allergic skin disease in dogs.
Probiotics are beneficial bacteria that live in the gut and help support the gastrointestinal health of dogs and can play a crucial role in modulating the immune system. They can also help boost the immune system and reduce inflammation. Research published in the Journal of Veterinary Internal Medicine suggested that probiotic supplementation improved skin conditions and reduced pruritus in dogs with allergies.
Recommended Product: Probiotics for Dogs
4). Mushrooms
Mushrooms are a rich source of antioxidants and other nutrients that can help support your dog’s immune system. Mushrooms can help reduce allergy symptoms in dogs by supporting the immune system and reducing inflammation.
There are a number of different mushrooms which can be used as supplements for dog allergies:
- The agarikon mushroom is a great supplement for allergies as it supports the body’s natural immune response, and it is rich in antioxidants.
- Cordyceps may support a healthy inflammatory response.
- Reishi mushroom may support a healthy inflammatory response as well as maintain normal histamine levels. This mushroom is also adaptogenic-meaning it helps bring the immune system back to a state of homeostasis (whether the immune system is overreacting or underreacting).
- Turkey Tail is another mushroom that can support the immune system-in turn, supporting the body’s response to allergies.
Recommended Product: Mushrooms for Dogs
5). Quercetin
Quercetin is a compound within plants known as a flavonoid. This flavonoid gives some plants-such as wine, apples, onions and berries-their color.
Quercetin is a flavonoid with potent anti-inflammatory and antihistamine properties. It inhibits the release of histamine, the chemical responsible for allergy symptoms like itching and swelling. A study published in the International Journal of Immunopharmacology showed that quercetin reduced allergic responses in animals and could be beneficial for dogs suffering from allergies.
Recommended Product: Quercetin for Dogs
6). Bromelain
Bromelain is a proteolytic enzyme derived from pineapples. It has been studied for its anti-inflammatory properties and its ability to reduce allergic reactions. A research article published in Evidence-Based Complementary and Alternative Medicine indicated that bromelain has the potential to alleviate allergy-related inflammation and improve clinical outcomes in dogs.
Recommended Product: Bromelain for Dogs
7). Vitamin E
Vitamin E is a powerful antioxidant that can help reduce inflammation and oxidative stress caused by allergies. A study published in the American Journal of Veterinary Research reported that vitamin E supplementation improved clinical signs in dogs with atopic dermatitis.
Recommended Product: Vitamin E for Dogs
8). CBD (Cannabidiol)
Saving the best for last — CBD from hemp is the ‘new-kid-on-the-block’, but this newcomer has the potential to effectively address canine allergic symptoms on both a cellular and systemic level.
Cannabidiol (CBD) derived from the hemp plant, can be a helpful natural supplement for dog allergies in that it helps support the immune system and helps maintain a ‘normal inflammatory response’. Preliminary research has shown promising results regarding CBD’s anti-inflammatory and immunomodulatory effects.
Specifically, a study demonstrated that CBD prevented cells from releasing histamines, reducing local skin allergy symptoms. While more research specific to dogs with allergies is needed, many pet owners report positive experiences with CBD in alleviating allergy symptoms.

In order to achieve these medicinal benefits, CBD oil can be administered orally or applied topically to the affected area.
Recommended Product: Full Spectrum CBD Oil for Dogs
To learn more about the relationship between the immune system and allergies, read Dog Allergies – Is CBD Good for Dog Allergies?
Best Course of Action for Dog with Allergies
As pet owners, we all know how frustrating it can be when our furry friends suffer from allergies and uncomfortable itching. That’s why I’m advocating for–in addition to conventional treatments–incorporating scientifically backed supplements can be a valuable part of a comprehensive allergy management plan for dogs.
Natural supplements can be a helpful addition to traditional allergy treatments for dogs. Colostrum, omega-3 fatty acids, mushrooms, probiotics and CBD are all natural supplements that can help reduce allergy symptoms in dogs. CBD, in particular, has gained popularity in recent years as a natural supplement for supporting dogs with allergies.
As with any supplement, it is important to consult with a veterinarian before administering it to your pet.
Curtis has been passionate about the health and welfare of animals since his first dog rescue.
After studying Sports Medicine & Biology at the University of Oregon, Curtis went on to excel in a career of Clinical Nutrition, later owning a health care supplement company serving private-practice physicians.
Known for his expansive knowledge of natural health and alternative medicine, Curtis believes that natural plant-based therapies can be applied to veterinary animal care which led him to study the science of Cannabinoid Medicine. His expertise in Functional Medicine led him to formulate a unique hemp-based canine care product, Canine Support Formula, fulfilling a dream to combine natural pet-care strategies with the new therapeutic potential of medical cannabis.
In reverence for his own dog, Parker, Curtis has dedicated his company–K9 Medibles–to improving the health and longevity of all dogs.
To learn more about Curtis and how K9 Medibles can help your dog, click HERE.