The flavonoid from onions and apples.
£27.76
£0.93 per day £0.46 per capsule
In stock. Orders before 2pm Mon-Fri are dispatched same day.
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Quercetin Capsules give you quercetin on its own, the flavonoid found in onions, apples, capers and tea, at an amount food cannot reach. Each capsule provides 250mg from the buds of Sophora japonica and you take two capsules once or twice a day. One pot holds 60 capsules, which is a 30 day supply at two a day.
Quercetin is the most studied of the plant flavonoids, the yellow pigments behind many of the effects credited to fruit and vegetables. Food supplies only small amounts, so people who want a measured daily amount take it as a capsule, usually with a meal that contains some fat.
Quercetin Capsules are most useful for:
If you want quercetin as part of a wider mix, Antioxidant Formula Capsules give 62.5mg in each capsule alongside 25 other antioxidants.
Each capsule provides 250mg of quercetin from Sophora japonica buds. There is nothing else in it apart from the vegetable capsule shell. Quercetin dihydrate, sophoretin and meletin are other names for it.
Take two capsules once or twice a day. A meal that contains some fat is the time to take them, because quercetin on its own is poorly absorbed on an empty stomach. If you take it for the gut rather than for the rest of the body, taking it away from food leaves more of it in the gut.
The capsules are suitable for vegans and vegetarians. They are free from gluten, dairy and nuts.
The capsules are made in the UK in a GMP certified cleanroom facility accredited to ISO 9001 and ISO 14001. Every batch is traceable from raw material to finished product. Like every supplement Nutri Tailor stocks, they are practitioner grade and guaranteed additive free.
Quercetin on its own, with bromelain or as a phytosome?
Plain quercetin is the cheapest way to take a measured amount, as long as you take it with food. Quercetin with bromelain adds a pineapple enzyme, a traditional pairing some people prefer. Phytosome forms bind it to a phospholipid to raise absorption at several times the price per milligram. These capsules give 250mg of plain quercetin, which suits most people who take it with meals.
How much quercetin should I take a day?
Take two capsules once or twice a day, which gives you 500mg to 1,000mg. That is the range most commonly used.
When is the best time to take quercetin?
With a meal, because the fat in food raises how much is absorbed. Morning and evening meals work well if you take it twice a day.
Can I take it with other supplements?
Yes. It is often taken alongside Vitamin C Ascorbic Acid Powder, a traditional pairing. If you take it with Hesperidin Capsules you also get bromelain, the pineapple enzyme people often pair with quercetin.
Does quercetin have side effects?
Quercetin is well tolerated at these amounts when taken with food. It can interact with some antibiotics, blood thinners and ciclosporin, so speak to your prescriber before starting if you take any prescribed tablets.
Why capsules rather than tablets?
A capsule is a cellulose shell around the powder, so it needs none of the binders or coating that hold a tablet together.
Order before 2pm Monday to Friday and your capsules are dispatched the same day from the UK. Standard UK delivery by Royal Mail Tracked 48 takes 2 to 4 working days and costs £3.35, or it is free when you spend £35 or more. Faster delivery is available at checkout. Nutri Tailor also ships worldwide, with duties and taxes shown before you pay. You can return unopened items within 30 days of delivery. New customers get 10% off their first order.
Nutri Tailor is rated 4.6 out of 5, "Excellent", on Trustpilot. Every supplement is chosen by experienced nutritional therapists. Kasia Key, Registered Associate Nutritionist, says: "I use Nutri Tailor for myself and my clients because you can be certain that their supplements are industry leading quality."
The information on this page draws on the NIH Office of Dietary Supplements and the European Food Safety Authority.
| Each capsule contains: | %NRV* | |
|---|---|---|
| Quercetin | 250 mg | † |
† Nutrient Reference Value (NRV*) not established
Also listed as quercetin dihydrate, sophoretin, meletin.
Suitable for men.
Suitable for women.
Consult your healthcare practitioner before use if pregnant or breastfeeding.
Suitable for vegetarians.
Suitable for vegans.
No gluten containing ingredients.
No nut containing ingredients.
No dairy containing ingredients.
If you are taking prescribed medicines or under medical supervision, consult your healthcare practitioner before use.
Store in a cool dry place.
Keep out of reach of children.
This information is not a substitute for advice from a healthcare practitioner.
This product should not be used as a substitute for a varied diet.
Once opened, consume within 3 months.
This product is in stock. Orders placed before 2pm Mon-Fri are dispatched the same day.
UK Standard Delivery (Royal Mail Tracked 48, 2 to 4 working days) is £3.35, or free on orders of £35 or more. Express Delivery (Tracked 24, 1 to 2 working days) is £5.65, free on orders of £60 or more. Next Day Delivery (Royal Mail Special Delivery) is £8.50, free on orders of £100 or more; order before 2pm on a working day for next-working-day arrival. We dispatch Monday to Friday.
Delivery and worldwide shipping options are shown at checkout, with duties and taxes included.
Unopened items in their original packaging can be returned within 30 days of delivery.
New customers get 10% off their first order.

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Quercetin is a flavonoid that stabilises mast cells, the immune cells that release histamine during allergic reactions. It also has broad anti inflammatory and antioxidant activity and functions as a zinc ionophore, helping shuttle zinc into cells where it supports immune function. It is found naturally in onions, apples, berries and capers.
For allergy and immune support, take Quercetin with meals. Standard quercetin has relatively low oral bioavailability (approximately 17 to 25 percent), and the fat content in food significantly improves absorption. For gut focused use, taking it away from food allows quercetin to act directly on the gut lining rather than being absorbed systemically.
Plain quercetin is absorbed poorly on an empty stomach, so it is taken with a meal that contains some fat. Quercetin with bromelain pairs it with a pineapple enzyme, a traditional combination that some people prefer. Phytosome forms bind quercetin to a phospholipid to raise absorption, at several times the price per milligram. These capsules give 250 mg of quercetin on its own from Sophora japonica, which suits people who want the plain flavonoid at a measured dose and are happy to take it with food.
If you take any prescription medication, please consult your prescribing healthcare professional before starting Quercetin. Quercetin can interact with certain antibiotics, blood thinners, and cyclosporine. Suitability and allergen detail is in the Informational Booklet supplied with the product.
People pointed at quercetin by a practitioner or their own reading who want the plain form at a known 250 mg dose, people who want to run the 500 to 1,000 mg a day range the research used, and anyone who wants a single ingredient rather than a blend. There is no authorised health claim for quercetin, so Nutri Tailor does not promise an outcome from it.
A flavonoid, one of the yellow plant pigments, found in onions, apples, capers and berries. Each capsule provides 250 mg. It is poorly absorbed on its own, so it is usually taken with a meal that contains some fat.
Tablets need binders, fillers and a coating to hold their shape. A capsule is a cellulose shell around the powder, so it carries no binders and breaks down quickly once swallowed.
