Quercetin
supplement ingredient
What is it?
Quercetin is a supplement added for a specific benefit. Graded good: a real, recognisable ingredient that adds nutritional value, so it lifts a product’s score.
Other names on labels: quercetin dihydrate
At a glance
- Base score
- 0.7 (from −1 to 1; higher is better)
- Found in
- 6 products
Products containing quercetin
Results reflect the latest label we hold for each product, not a live check of today's recipe. Open a product to see its source and last-checked date.
Common questions about quercetin
Is Quercetin good for dogs?
Yes, we grade it as a good ingredient: recognisable and nutritionally useful, so it lifts a product’s score. Bear in mind that no single ingredient decides quality; the whole recipe and its balance matter more.
What is quercetin in dog food?
Quercetin is a plant compound found in many fruits and vegetables and is added to some dog foods as a supplement. It appears on labels as quercetin or quercetin dihydrate.
Why is quercetin added to dog food?
Quercetin is a flavonoid with antioxidant properties and is sometimes included in recipes marketed for general wellness. It is generally regarded as safe, but speak to your vet before choosing a food with added quercetin for a specific purpose.
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How many UK dog foods contain quercetin?
6 UK products list quercetin as an ingredient in our database. The full list is shown above, sorted by rating.
What else is quercetin called on labels?
Manufacturers can also list it as quercetin dihydrate. We match this to the same glossary entry when we read a label.
How does Open Dog Food grade quercetin?
We grade it good, our highest grade, reserved for recognisable ingredients that add real nutritional value. Every ingredient is converted to its dry-matter share and scored from our glossary before a recipe gets its 1-100 rating; the full method is on our methodology page.