Quercetin for Doodles: Does It Help With Itchy Skin?
Last updated: June 2, 2026
TL;DR
Quercetin is a plant flavonoid studied for its effect on the body's allergic and histamine response, which is why it shows up in dog allergy supplements. It is often paired with bromelain to help absorption. Dood Woof includes 100 mg of quercetin and 20 mg of bromelain in the Doodle Allergy and Itch Chew.
What is quercetin?
Quercetin is a naturally occurring flavonoid found in fruits, vegetables, and tea. It has been widely studied for its antioxidant and anti-allergic activity, according to a review in the National Library of Medicine. In supplements for dogs, it is included for its researched role in the allergic response rather than as a flavor or filler.
Does quercetin help dogs with allergies?
Research points to a supportive role. A systematic review of animal models found quercetin shows anti-allergic effects, including action on histamine and the mast cells involved in allergic reactions, according to the National Library of Medicine. That is the same histamine response behind a doodle's itchy, allergy-prone skin. Quercetin supports that response rather than acting as a medication, so it works best alongside grooming and veterinary care, as the Dood Woof guide to seasonal allergies in doodles explains.
Why is quercetin paired with bromelain?
Bromelain helps quercetin do its job. Bromelain is an enzyme that supports quercetin's absorption, and a veterinary study in dogs found a blend with bromelain and quercetin had antioxidant and anti-inflammatory effects, according to a study in dogs. That is why quality allergy chews pair the two rather than using quercetin alone.
How much quercetin do dogs need, and is it safe?
The right amount depends on a dog's weight, so follow the product's dosing and your vet's guidance. Quercetin is generally well tolerated as a supplement, but it can interact with some medications and is not a substitute for treatment your vet prescribes. Certain omega fatty acids and other ingredients are often used alongside it for itchy skin, according to VCA Animal Hospitals, and as a supplement fish oil can support a dog's skin and immune system, according to the American Kennel Club. This article is general information and not a substitute for veterinary care.
How does the Doodle Allergy and Itch Chew use quercetin?
Quercetin is one of its hero ingredients. The Dood Woof Doodle Allergy and Itch Chew includes 100 mg of quercetin with 20 mg of bromelain for absorption, alongside salmon-oil omega-3 and probiotics. It is a vet-formulated supplement made to support dogs with seasonal skin allergies. For how the full ingredient list works together, see the guide to what to look for in an allergy and itch chew.
Frequently asked questions
What does quercetin do for dogs?
Quercetin is a plant flavonoid studied for anti-allergic and antioxidant effects, including action on the histamine response, according to a review in the National Library of Medicine. In dog supplements it is used to support skin that is prone to seasonal allergies. It supports the allergic response rather than acting as a medication.
Is quercetin safe for dogs?
Quercetin is generally well tolerated as a dog supplement, but the right dose depends on weight and it can interact with some medications. Always check with your veterinarian before starting it, especially if your dog takes other medicine or has a health condition.
Why is quercetin combined with bromelain?
Bromelain is an enzyme that supports quercetin's absorption, and a veterinary study in dogs found a bromelain and quercetin blend had antioxidant and anti-inflammatory effects. Pairing the two is more effective than quercetin on its own, which is why the Doodle Allergy and Itch Chew includes both.
Does the Doodle Allergy and Itch Chew contain quercetin?
Yes. The Doodle Allergy and Itch Chew contains 100 mg of quercetin with 20 mg of bromelain, plus salmon-oil omega-3 and probiotics. It is a vet-formulated supplement made to support dogs with seasonal skin allergies.
Elina Panteleyeva is the founder of Dood Woof, a clean-ingredient grooming and supplement line made for doodle-breed dogs. A doodle owner herself, she started the company in 2023 after struggling to find products with ingredients she trusted, and developed all three of its formulations, now used by more than 70,000 doodle households. Follow Dood Woof on Instagram.
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