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Immunity

Vitamin C, zinc, vitamin D, garlic, echinacea, propolis and mushroom extracts, in tablets, capsules, sachets, powders, tinctures and gummies. Brands include Natures Aid, Viridian, HealthAid, Lamberts, Biocare and Quest.

Which nutrients contribute to normal immune function?

Quite a few, and these are authorised claims rather than marketing: vitamin C, vitamin D, vitamin A, vitamin B6, vitamin B12, folate, zinc, selenium, copper and iron all contribute to the normal function of the immune system. Vitamin C and zinc also contribute to the protection of cells from oxidative stress.

Vitamin D in winter

Between October and early March, sunlight in the UK is not strong enough for the skin to make vitamin D, and the NHS advises that everyone considers a daily supplement over those months. It is the single most evidence-backed item in this collection and among the least expensive.

What about elderberry, echinacea and garlic?

All three are long-standing sellers and none carries an authorised health claim in Great Britain. Some echinacea products hold a Traditional Herbal Registration, which is granted on the basis of traditional use rather than clinical evidence - the details are on the pack. We stock them because customers ask for them, and we would rather be straight about where the evidence stands.

Liposomal vitamin C

Altrient and the Zooki range use a liposomal delivery format, where the vitamin is encapsulated in a phospholipid. They sit at a higher price point than standard vitamin C and are among the products customers most often ask us to explain. The authorised claims are the same as for any vitamin C product.

Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

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Natures AidVitamin C 1000MG Effervescent 20 Tablets

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Vitamin C at 1000mg in an effervescent tablet, dissolved in water — useful if you would rather drink it than swallow a large tablet. Vitamin C cont...

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Natures AidVitamin C 1000mg Low Acid 180 Tablets

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Vitamin C at 1000mg in a low acid form, gentler on the stomach than standard ascorbic acid. Vitamin C contributes to normal immune system function ...

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Natures AidVitamin C 1000mg Low Acid 90 Tablets

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Vitamin C at 1000mg in a low acid form, gentler on the stomach than standard ascorbic acid. Vitamin C contributes to normal immune system function ...

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Natures AidVitamin C 1000mg Low Acid 30 Tablets

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Vitamin C at 1000mg in a low acid form, which suits anyone who finds standard ascorbic acid hard on the stomach. Vitamin C contributes to normal im...

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Natures AidVitamin C 1000mg Time Release 180 Tablets

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Vitamin C at 1000mg in a time-release tablet, released gradually rather than all at once. Vitamin C contributes to normal immune system function an...

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Natures AidVitamin C 1000mg Time Release 90 Tablets

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Vitamin C at 1000mg in a time-release tablet with citrus bioflavonoids, so the dose is released gradually rather than all at once. Vitamin C contri...

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Higher NatureTrue Food Vitamin C Powder 66g

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Clean high strength, natural source vitamin C from rosehip fruits rich in phyto nutrients for full spectrum benefits. Equivalent to 660g whole rose...

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Dr OrganicVitamin C Conditioner 265ml

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Dr Organic Vitamin C Conditioner offers tropically scented nourishment enriched with vitamin C, formulated for silky, soft hair with enhanced colou...

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Bee and YouVitamin C Serum 30ml

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Specially formulated for a brighter, smoother complexion, BEE&YOU Vitamin C Face Serum blends a patented, high-absorption form of Vitamin C wit...

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HealthAidVitamin C 1000mg Prolonged Release 30 Tablets

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Everyone knows the importance of Vitamin C for the immune system. Did you know that Vitamin C also assists with healthy teeth, gums, skin, joints a...

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CytoplanVitamin C + Bioflavonoids 60 Capsules

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This supplement combines a high potency of 1000mg of vitamin C per capsule (as ascorbic acid) plus 50mg of bioflavonoids. Bioflavonoids naturally a...

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BiethicaVitamin C Powder 100g

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Biethica Vitamin C Powder Immune System Support

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HealthAidVitamin C Pure Ultrafine 100g

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Vitamin C is necessary for healthy teeth, gums, bones, skin, cells, blood vessels and strong healthy connective tissues. It is essential for growth...

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HealthAidVitamin C 1500mg 100 Tablets

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At 1500mg in a single tablet this is at the high-strength end, and the format is the reason to choose it.Each tablet supplies 1500mg of vitamin C a...

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Ener CSugar Free Vitamin C Berries 30 Sachets

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This is the sugar-free version of Ener C's effervescent drink, in mixed berry.Each sachet supplies 1000mg of vitamin C from ascorbic acid and a min...

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Ener CSugar Free Vitamin C Orange 30 Sachets

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Ener-C Sugar Free delivers 1000mg of Vitamin C alongside a comprehensive blend of essential vitamins and minerals, with natural sweeteners replacin...

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Ener CVitamin C 1000mg Variety Pack 30 Sachets

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  Ener-C is a premium effervescent vitamin drink mix formulated to support four essential wellness pillars. Each sachet delivers 1000mg of vitamin ...

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Ener CVitamin C 1000mg Raspberry 30 Sachets

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Ener-C was designed with you in mind. We have produced a delightful-tasting, effervescent vitamin drink mix that comes in a variety of natural frui...

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Ener CVitamin C 1000mg Tangerine 30 Sachets

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Ener-C was designed with you in mind. We have produced a delightful-tasting, effervescent vitamin drink mix that comes in a variety of natural frui...

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Ener CVitamin C 1000mg Lemon Lime 30 Sachets

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Ener-C was designed with you in mind. We have produced a delightful-tasting, effervescent vitamin drink mix that comes in a variety of natural frui...

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LambertsVitamin C Time Release 1000mg 60 Tabs

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Lamberts Vitamin C Time Release delivers a higher-dose 1000mg of vitamin C plus citrus bioflavonoid complex and rose hip extract per tablet, releas...

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LambertsVitamin C Ascorbic Acid 250g Powder

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Lamberts Vitamin C is a soluble fine white powder delivering 1000mg of vitamin C per quarter-teaspoon (1 gram) serving, a straightforward single-in...

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Natural Health PracticeVitamin C Support 60 Capsules

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Vitamin C Support includes magnesium and bilberry extract and is rich in bio-flavonoids

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QuestLiposomal Vitamin C 60 Capsules

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Our advanced formula of Vitamin C contains vital nutrients that act as antioxidants, protecting cells from oxidative stress and promoting the norma...

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Ener CSugar Free Vitamin C Lemon Ginger 30 Sachets

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Ener-C delivers comprehensive nutritional support without added sugars. Each sachet provides 1000mg of Vitamin C alongside a full spectrum of essen...

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ProvenUrgent C 1000mg Vitamin C 30 Sachets

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Urgent C is not a plain vitamin C sachet. It combines the vitamin with live bacteria and three minerals.Each sachet supplies 1000mg of vitamin C, 5...

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Natures AidMini Drops Iron (with Vitamin C, B12 & Folic Acid) 50ml

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Natures Aid Mini Drops Iron Supplement - 50ml Comprehensive Nutrient Support Introducing the Natures Aid Mini Drops Iron Supplement, a meticulous...

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Natures AidMini Drops Vitamin C Sprinkles 100mg 90g

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Natures Aid Mini Drops Vitamin C Sprinkles - 100mg, 90g Product Overview: Introducing the Natures Aid Mini Drops Vitamin C Sprinkles, a premium d...

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KIKI HealthOrganic Vitamin C 50 Capsules

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Experience the power of this high potency natural vitamin C, for daily protection against oxidative stress and all around wellness. This vegan sour...

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Natures AidSuper Stars Vitamin C 60 Tablets

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Natures Aid Super Stars Vitamin C provides 160mg of this essential nutrient in each delicious cherry flavoured chewable tablet. The tablets are nat...

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Lamberts supply the practitioner market and hold their specifications tightly, which is why they turn up in this category so often. Biocare formulates in the UK working with practitioners and builds to be hypoallergenic.

HealthAid and Natures Aid cover the more everyday end, and Solgar has been going since 1947. Between them they do the job without us needing to stock six versions of the same thing.

From October to March the sunlight in the UK is too weak for skin to make vitamin D, which is why official advice is to consider a daily 10 microgram supplement over those months. It is the one supplement that applies to almost everyone here.

It is fat-soluble, so take it with a meal containing some fat. Many products pair it with vitamin K2, which is worth knowing about if you are taking higher doses.

Vitamin C comes as plain ascorbic acid, buffered versions that are gentler on the stomach, and liposomal forms such as Altrient. Timed-release products spread the dose through the day.

Zinc is one to be measured about - it has an upper limit worth respecting, and taking a lot of it long-term can interfere with copper. Stick to the pack and count what is already in your multivitamin.

FAQ

How much vitamin D should I take?

Official UK advice is to consider 10 micrograms daily through autumn and winter. Higher doses are available and are best taken on advice rather than by guessing.

Is buffered vitamin C easier on the stomach?

Many people find it is. Buffered forms pair the vitamin with a mineral to reduce acidity, which suits anyone who finds plain ascorbic acid uncomfortable.

Can I take vitamin C and zinc together?

Yes, and plenty of formulas combine them. Just add up the totals if you are also taking a multivitamin, since zinc in particular has an upper limit.

When should I start taking these?

Most people begin as the clocks change and the days shorten. Vitamin D in particular is taken through the whole of autumn and winter rather than started once you feel you need it.