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Quercetin

Quercetin from Solgar, Biocare, Viridian, Lamberts, Higher Nature and Natures Aid – on its own and in complexes with vitamin C or B5.

A plant compound found in onions, apples and tea. It has no permitted health claim, so what follows is a description rather than a pitch.

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BioCare Quercetin Plus 90 Vcaps
Biocare Quercetin Complex 90 Capsules
Cell Protection

BiocareQuercetin Complex 90 Capsules

£36.59 - £36.59
£36.59
£37.39
£37.39 - £37.39
£37.39

Quercetin Complex combines key nutrients like quercetin, bromelain, vitamin C, and nettle leaf extract to support immune health and antioxidant pro...

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£36.59 - £36.59
£36.59
£37.39
£37.39 - £37.39
£37.39
Viridian Quercetin B5 Plus Complex 60 vcaps
Save 10% Save %
Cell Protection

ViridianQuercetin B5 Plus Complex 60 vcaps

£22.95
£22.95 - £22.95
£22.95
£20.66
£20.66 - £20.66
£20.66

Quercetin and vitamin B5 with nettle extract, chamomile flower, pine bark extract, bromelain (from pineapple) and acerola fruit, plus vitamin C. Vi...

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£22.95
£22.95 - £22.95
£22.95
£20.66
£20.66 - £20.66
£20.66
Save 10% Save %
Solgar Quercetin Complex 100 Vcaps
Cell Protection

SolgarQuercetin Complex 100 Vcaps

£39.79 - £39.79
£39.79
£39.79
£39.79 - £39.79
£39.79

Exclusive to Solgar, Quercetin complex is a proprietary formula and contains additional natural plant bioflavonoids, powerful antioxidants that nat...

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£39.79 - £39.79
£39.79
£39.79
£39.79 - £39.79
£39.79
Lamberts Quercetin 500Mg 60 Tablets
Cell Protection

LambertsQuercetin 500Mg 60 Tablets

£29.29 - £29.29
£29.29
£29.29 - £29.29
£29.29

Lamberts Quercetin delivers 500mg of quercetin, a plant flavonoid, per tablet — a straightforward single-ingredient nutritional supplement.This pac...

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£29.29 - £29.29
£29.29
£29.29 - £29.29
£29.29
Solgar Quercetin Complex 50 Vcaps
Cell Protection

SolgarQuercetin Complex 50 Vcaps

£22.35 - £22.35
£22.35
£22.35
£22.35 - £22.35
£22.35

Quercetin is a non-citrus bioflavonoid that works in synergy with Vitamin C. Bioflavonoids are naturally present in fruit, vegetables and herbs, an...

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£22.35 - £22.35
£22.35
£22.35
£22.35 - £22.35
£22.35
Higher Nature Quercetin & Bromelain 60 Capsules
Gut Health

Higher NatureQuercetin & Bromelain 60 Capsules

£18.99 - £18.99
£18.99
£18.99 - £18.99
£18.99

- A great synergistic combination of nutrients - With vitamin C which protects the cells from oxidative stress - Quercetin is a plant-derived...

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£18.99 - £18.99
£18.99
£18.99 - £18.99
£18.99
Natures Aid Quercetin Formula 90 Capsules
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Cell Protection

Natures AidQuercetin Formula 90 Capsules

£16.99 - £16.99
£16.99
£16.99 - £16.99
£16.99

Natures Aid Quercetin Formula is an advanced formula containing Ester-C®, Highly absorbable, non-acidic Vitamin C.

£16.99 - £16.99
£16.99
£16.99 - £16.99
£16.99
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New Leaf Quercetin 500mg 180 Capsules
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Cell Protection

New LeafQuercetin 500mg 180 Capsules

£23.99 - £23.99
£23.99
£23.99 - £23.99
£23.99

New Leaf's Quercetin 500mg supplement delivers a potent dose of this powerful bioflavonoid in each vegan capsule. Sourced from Sophora Japonica ext...

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£23.99 - £23.99
£23.99
£23.99 - £23.99
£23.99
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A flavonoid – one of the coloured plant compounds that occur widely in fruit, vegetables and tea. Onions are among the richest ordinary sources. Supplements provide it in considerably larger amounts than a plate of food would.

That is the honest description and we are stopping there. Quercetin is much discussed online and a great deal of what is said about it is not something a shop should repeat.

Most products here pair quercetin with vitamin C, and Viridian's adds B5. Vitamin C contributes to the protection of cells from oxidative stress and to normal immune system function, which are its own claims rather than quercetin's.

The combination products are generally the better buy simply because you are getting vitamin C alongside, and vitamin C is cheap and useful in its own right.

Quercetin is poorly water soluble, so take it with a meal. Strengths vary quite widely between brands – Lamberts' is 500mg per tablet – so compare per capsule rather than per pot.

If you take prescribed medication, ask a pharmacist before starting quercetin. It is not recommended in pregnancy or breastfeeding without advice.

FAQ

What is quercetin?

A flavonoid found in onions, apples and tea. Supplements provide considerably more than food would.

Why is it combined with vitamin C?

Most products pair the two. Vitamin C brings its own well-established contributions, which is a reasonable argument for the combination.

Should I take it with food?

Yes. Quercetin is poorly soluble in water and is better taken with a meal.

Can I take it with medication?

Ask a pharmacist first, and avoid it in pregnancy or breastfeeding without advice.