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4 Best Quercetin Supplements for Dogs

Written by: Justin Palmer
Justin Palmer is a Certified Pet Food Nutrition Specialist and co-founder of Inspired by his rescued husky, Splash, he dedicated himself to learning about extending both the length and quality of her life. Splash lived and thrived until 18 years old, and now Justin is on a mission to share what he learned with other dog owners.Read more
| Published on June 1, 2023

Our beloved furry friends, with their unending loyalty and companionship, deserve nothing but the best. As pet parents, we strive to provide the finest nutrition to promote their overall wellbeing, and in recent years, quercetin has emerged as a potent supplement that holds promise for canine health. This naturally occurring antioxidant, found in various fruits and vegetables, has been linked to an array of health benefits for dogs, from allergy relief to anti-inflammatory effects to potential cancer prevention.

Quercetin supplements for dogs

In this article, we will explore the best quercetin supplements for dogs, diving deep into their ingredients, efficacy, and safety, helping you make the right choice for your furry family member.

Related: 10 Best Eye Supplements for Dogs

#1 – (Best Overall) iHeartDogs Allergy & Itch Relief for Dogs with Salmon Oil, Quercetin, Colostrum, Antioxidants and Probiotics

iHeartDogs Allergy & Itch Relief for Dogs is a supplement that contains a proprietary blend of natural ingredients that can provide relief to dogs suffering from allergies and itchy skin. The product includes salmon oil, quercetin, colostrum, antioxidants, and probiotics that promote a healthy immune system, digestive health, healthy skin and coat, and cognitive function, among other benefits. Reishi mushrooms in the supplement have anti-inflammatory and antioxidant properties that can reduce allergy symptoms such as itching and difficulty breathing.


PetHonesty Dog Allergy SupportImmunity Chews – Omega-3 Salmon Fish Oil Supplement, Probiotics for Dogs, Seasonal Allergies, Skin + Coat Health, Intermittent Itchiness – Salmon (90 Count)

PetHonesty Dog Allergy SupportImmunity Chews is a natural supplement that combines ingredients such as salmon oil, turmeric, organic mushrooms, and probiotics to support a healthy immune system and normal digestion for dogs with seasonal and occasional allergies. The chews are made in the USA with high-quality natural ingredients and contain no harsh preservatives, corn, soy, GMOs, or chemical ingredients. Pet Honesty products are produced in a GMP certified facility, ensuring the highest safety standards.

Related: 10 Best Fish Oil Supplements for Dogs

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Nutrition Strength Quercetin for Dogs with Bromelain to Support Balanced Immune System, Promote Inflammatory Relief & Antioxidant Activity, Quercetin for Dog Allergies, 120 Chewable Tablets

Nutrition Strength Quercetin for Dogs with Bromelain is a supplement that supports a balanced immune system in dogs, promotes inflammatory relief, and antioxidant activity. Made in the USA with high-quality ingredients, the supplement also contains quercetin for dog allergies, and has been shown to improve overall mental and physical performance. The product comes with a 365-day guarantee for customer satisfaction.


Quercetin for Dogs | Dog Allergy Relief | Quercetin for Dogs Allergies | Dog Allergy | Quercetin | Dog Allergy Support | Quercetin Dog | Dog Allergies | Quercetin Supplements | 1oz: Bacon Flavor

This product is a 1oz bacon-flavored liquid supplement for dogs that contains quercetin, a natural ingredient that may provide support for allergies and immune system problems. The formula aims to be comprehensive and easily digestible for all dog breeds and sizes, with no artificial additives. The manufacturer offers a satisfaction guarantee or money back.


Why Should I Give a Quercetin Supplement to My Dog?

Quercetin, a natural flavonoid found in various fruits and vegetables, has been gaining attention in both human and veterinary health circles for its wide range of potential benefits. Here are five reasons why you might consider giving quercetin to your dog:

  1. Anti-Inflammatory Properties: Quercetin has shown strong anti-inflammatory properties, making it beneficial for dogs suffering from conditions characterized by inflammation such as arthritis, allergies, and certain skin conditions.
  2. Antihistamine Effect: Quercetin has a natural antihistamine effect, which could help dogs dealing with allergies. It may help to alleviate symptoms such as itching, sneezing, or coughing.
  3. Cardiovascular Health: Some studies suggest that quercetin could support cardiovascular health in dogs, potentially improving heart function and reducing the risk of certain cardiovascular diseases.
  4. Cancer Prevention: Preliminary research has suggested that quercetin may have anti-cancer properties. Though it’s important to note that more research is needed, some studies have shown that it can inhibit the growth of cancer cells and stimulate apoptosis (programmed cell death) in certain types of cancer.
  5. Neuroprotective Properties: Quercetin’s antioxidant properties can help protect against oxidative stress and inflammation in the brain, which may offer some neuroprotective benefits. This could potentially help in slowing the progression of age-related cognitive decline in dogs.

Always remember, while quercetin is generally considered safe for dogs, it’s important to consult with your vet before adding any new supplement to your pet’s diet. They can provide guidance on the appropriate dosage and discuss any potential interactions with other medications your dog may be taking.

Frequently Asked Questions About Quercetin Supplements for Dogs

1. What is quercetin and why is it beneficial for dogs?

Quercetin is a flavonoid, a type of natural compound found in many fruits and vegetables. It is considered a powerful antioxidant and anti-inflammatory agent. In dogs, quercetin can help combat inflammation, support cardiovascular health, potentially inhibit the growth of cancer cells, and offer some neuroprotective benefits.

2. Can quercetin help my dog with allergies?

Yes, quercetin is known for its antihistamine properties, making it a natural choice for managing allergies in dogs. It can help alleviate symptoms like itching, sneezing, or coughing associated with various allergies.

3. How does quercetin work in relieving allergy symptoms in dogs?

Quercetin works by stabilizing the cells that release histamines into the body during allergic reactions. Histamines are the compounds that cause typical allergy symptoms. By preventing histamine release, quercetin can help to reduce symptoms such as itching, sneezing, and inflammation.

4. Can I give my dog quercetin regularly?

Quercetin is generally safe for regular administration in dogs, but it should always be given under the guidance of a veterinarian. The appropriate dosage depends on your dog’s size, health status, and specific needs.

5. How much quercetin can I give my dog?

The dosage of quercetin will vary depending on the weight and overall health of your dog. It is often recommended that dogs receive around 5-10 milligrams of quercetin per pound of body weight, once or twice daily. However, always consult your veterinarian to establish the best dosage for your pet.

6. Are there any side effects of giving quercetin to my dog?

While quercetin is generally safe for dogs, some dogs might experience mild side effects such as nausea and diarrhea, particularly when starting the supplement. If you notice any adverse reactions, you should consult your vet immediately.

7. Can I give my dog quercetin in combination with other medications?

Quercetin can potentially interact with certain medications, so it’s important to consult your vet if your dog is currently on any medication. Your vet can guide you about the safe use of quercetin with other drugs. Remember, never start or stop any supplements or medications without first consulting your veterinarian.

Related: The 4 Best Supplements for Puppies (+1 to Avoid)

Choosing the right supplement for your dog is a personal decision that depends on your pet’s specific needs, lifestyle, and your veterinarian’s advice. Quercetin, with its impressive health benefits, could be a worthy addition to your dog’s dietary regimen. We hope this comprehensive look at the best quercetin supplements for dogs has been useful in your quest to give your pet the best possible care. Remember, supplements are not a cure-all or a substitute for a balanced diet and regular veterinary check-ups. Incorporate these supplements wisely and always consult your vet before making any changes to your pet’s diet. Keep advocating for your dog’s health, because they rely on you to keep them at their best, and in return, they reward us with endless love and loyalty.

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