By the Zespo team · Updated 26 October 2026
Quercetin is a flavonoid, one of the coloured compounds plants make. It gives many fruits and vegetables part of their yellow tone, and it is one of the most common flavonoids in everyday food.
Where is quercetin found in food?
Red onions, capers, apples (especially the skin), berries, kale, green and black tea and buckwheat all contain quercetin. The amount varies with variety, growing conditions and cooking.
Forms you will see on labels
Supplements commonly use quercetin dihydrate, a stable crystalline form. Some formulas pair quercetin with bromelain, an enzyme from pineapple stems, so check whether you are looking at quercetin alone or a combination.
What to check before you buy
- The amount of each ingredient per serving, not just per capsule
- How many capsules make one serving and how many servings are in the pack
- Whether any ingredient sits inside an undisclosed "proprietary blend"
- The veg/non-veg mark and the manufacturer details on the pack
Label facts: Zespo Quercetin 880 mg, 90 capsules
- Quercetin dihydrate (98%), source Sophora japonica: 880 mg per serving
- Serving size: 2 capsules; 90 capsules per pack = 45 servings
- Other ingredients: hypromellose (capsule shell), magnesium stearate
- Made in India in a GMP-certified facility
How to read this label
The 880 mg is the amount in one serving of two capsules, so each capsule holds about 440 mg. 90 capsules divided by 2 per serving gives 45 servings.
Get Zespo Quercetin 880 mg on Amazon.in
About Zespo: brand facts and product index · All Zespo links
Zespo products are food supplements, not medicines. This article is for general information and is not medical advice. Take supplements as directed on the label and speak to a qualified healthcare professional if you are pregnant, nursing, taking medication or have a medical condition.
Next step: Buy Zespo Quercetin 880 mg on Amazon.in
More label guides: Beta sitosterol explained · Astragalus extract ratio explained · Citrus bergamot and olive leaf explained
Leave a comment
Share your thoughts. We read every reply.