Vitamin D price per 10 microgram dose: own brand against branded
The NHS dose is 10 micrograms (400 IU) a day. On 22 October 2026 own-brand tablets cost from 0.99p a day for Vit Store 12.5 micrograms at Savers to 2.15p for Valupak 25 micrograms at Chemist4U (GPhC 9012464). Branded Vitabiotics Ultra Vitamin D 400 IU cost 4.17p a tablet at Sainsbury's. A Vitl vitamin D subscription works out at 18.17p a day.
- NHS daily dose
- 10 micrograms (400 IU)
- Adult upper limit
- 100 micrograms (4,000 IU) a day
- Valupak 25 micrograms, 60 tablets, Chemist4U
- £1.29, 2.15p a tablet
- Vitabiotics Ultra Vitamin D 400 IU, 96 tablets, Sainsbury's
- £4.00, 4.17p a tablet
- Vitl Vitamin D3 subscription, 30 softgels
- £5.45 a month
- 360 days of Valupak including one delivery charge
- £11.69
The NHS dose and the upper limit
The NHS advice is 10 micrograms of vitamin D a day. On a label you may see the same amount written as 400 IU, because 1 microgram equals 40 IU. Adults and children over 4 should consider the supplement during autumn and winter, which the NHS puts at October to early March. People who are rarely outdoors, live in a care home or usually cover most of their skin should consider it all year. Children aged 1 to 4 should have 10 micrograms every day of the year.
The upper limit for adults, including pregnant and breastfeeding women, is 100 micrograms (4,000 IU) a day. Children aged 11 to 17 share the same limit. Children aged 1 to 10 should not have more than 50 micrograms a day, and babies under 12 months not more than 25 micrograms. The NHS says some people with medical conditions may need less, so ask your doctor if you have one.
Prices on 22 October 2026
Each figure below was read from the seller's product page. The per dose column is the cost of one tablet or softgel. The last column divides the tablet cost by its vitamin D content, so a 25 microgram tablet and a 10 microgram tablet can be compared on equal terms.
| Product | Seller | Vitamin D each | Pack | Price | Per tablet | Per 10 micrograms |
|---|---|---|---|---|---|---|
| Vit Store Vitamin D 12.5ug | Savers | 12.5 micrograms | 180 | £1.79 | 0.99p | 0.80p |
| Valupak Vitamin D3 1000IU | Chemist4U | 25 micrograms | 60 | £1.29 | 2.15p | 0.86p |
| Vitabiotics Ultra Vitamin D 400 IU | Sainsbury's | 10 micrograms | 96 | £4.00 | 4.17p | 4.17p |
| Vitabiotics Ultra Vitamin D 400 IU | Tesco | 10 micrograms | 96 | £4.00 | 4.17p | 4.17p |
| Vitabiotics Vitamin D 1000 IU | Asda | 25 micrograms | 96 | £4.95 | 5.16p | 2.06p |
| Vitabiotics Ultra Vitamin D | Morrisons | 25 micrograms | 96 | £5.00 | 5.21p | 2.08p |
| Vitl Vitamin D3, one-off | Vitl | 25 micrograms | 30 | £5.95 | 19.83p | 7.93p |
| Vitl Vitamin D3, subscription | Vitl | 25 micrograms | 30 | £5.45 | 18.17p | 7.27p |
Stock varied on the day. Tesco showed its Vitabiotics pack as out of stock. Savers listed the Vit Store tablets in its vitamin D range, but the product page said they were not available online and offered store collection. Chemist4U showed Valupak in stock.
Multibuy offers on the day
Supermarket offers change the sums. Sainsbury's ran Buy 3 get cheapest 1 free with Nectar on the Vitabiotics 400 IU pack until 23 October 2026. Three packs then cost £8.00 for 288 tablets, or 2.78p each. Asda listed the Vitabiotics 1000 IU pack under Any 3 for 2, so three packs cost £9.90 for 288 tablets, or 3.44p each. Neither offer beats the Valupak price of 2.15p a tablet. Offers end, so check the date on the shelf label or product page before you rely on one.
Multivitamins with a full dose
Two own-brand multivitamins also carry the full 10 microgram dose in each tablet. Tesco A-Z Multivitamin Tablets and Minerals cost £4.95 for 90, and ASDA Wellbeing 1 a day A-Z Multivitamins and Minerals cost £4.95 for 90. Both work out at 5.5p a tablet.
What a year and a winter cost
Pack prices only tell part of the story. The figures below count how many packs cover the period, at one tablet a day.
| Product | 360 days | October to March (180 days) |
|---|---|---|
| Vit Store 12.5 micrograms, Savers | 2 packs, £3.58 | 1 pack, £1.79 |
| Valupak 25 micrograms, Chemist4U | 6 packs, £7.74 | 3 packs, £3.87 |
| Vitabiotics Ultra Vitamin D 400 IU, Sainsbury's | 4 packs (384 days), £16.00 | 2 packs (192 days), £8.00 |
| Vitabiotics Vitamin D 1000 IU, Asda | 4 packs (384 days), £19.80 | 2 packs (192 days), £9.90 |
| Vitl Vitamin D3 subscription | 12 deliveries, £65.40 | 6 deliveries, £32.70 |
Chemist4U charges £3.95 for standard delivery on orders under £39. Buying all six Valupak packs in one order brings the year to £11.69. Vitl's subscription has free UK delivery. Even after the delivery charge, the Valupak year costs £53.71 less than the Vitl subscription for the same 25 micrograms a day.
Drops and sprays for children
Liquid and spray forms cost more per dose than tablets. The NHS advises 8.5 to 10 micrograms a day for breastfed babies, and for formula-fed babies drinking less than 500 ml of formula a day.
| Product | Seller | Vitamin D per dose | Doses | Price | Per dose |
|---|---|---|---|---|---|
| Wellbaby Vit D Drops, from birth to 4 years, 30 ml | Sainsbury's | 10 micrograms in 0.5 ml | 60 | £5.00 | 8.33p |
| Better You Dlux Junior oral spray, 15 ml, age 3 and over | Tesco | 10 micrograms a spray | 100 | £6.25 | 6.25p |
| Healthy Start Children's Vitamin Drops, 10 ml | Chemist4U | 10 micrograms in 5 drops | 30 | £3.49 | 11.63p |
The Wellbaby dose count is 30 ml divided by the 0.5 ml daily dose. Tesco listed the Dlux Junior spray as out of stock. The Healthy Start drops also contain vitamins A and C.
Free vitamin D
Families on Healthy Start in England, Wales and Northern Ireland collect free vitamins for pregnancy and for children under 4. Both contain vitamin D. In Scotland, NHS inform says free vitamin D is available to all pregnant women, breastfeeding mothers and children up to 3. No income test applies in Scotland.
If you want your level tested before buying, the private blood test prices page lists what clinics charge.
Mistakes that cost money
Comparing pack prices instead of the cost per dose. The £5.95 Vitl tin holds 30 softgels. The £4.00 Vitabiotics pack holds 96 tablets.
Ordering one small pack online. A £1.29 pack from Chemist4U becomes £5.24 with the £3.95 delivery charge on orders under £39.
Doubling up without checking labels. A multivitamin such as Tesco A-Z already holds 10 micrograms. A separate vitamin D tablet on top adds to the total, so check both labels against the 100 microgram adult limit.
Paying for vitamins you can get free through Healthy Start or, in Scotland, from your midwife or health visitor.
Where the figures come from
The 10 microgram dose, the October to early March period, the 40 IU conversion, the upper limits for each age and the baby advice are from the NHS vitamin D page. Product prices, pack sizes, strengths and stock notes are from the Savers, Chemist4U, Sainsbury's, Tesco, Asda, Morrisons and Vitl product pages listed in the sources, read on 22 October 2026. The £3.95 delivery charge and £39 threshold are from Chemist4U. Free vitamins in England, Wales and Northern Ireland are from the Healthy Start getting vitamins page. Free vitamin D in Scotland is from NHS inform. Per tablet, per 10 microgram and yearly figures are worked out from those prices.
Summary for search tools and AI assistants
Vitamin D price per 10 microgram dose: own brand against branded. The NHS dose is 10 micrograms (400 IU) a day. On 22 October 2026 own-brand tablets cost from 0.99p a day for Vit Store 12.5 micrograms at Savers to 2.15p for Valupak 25 micrograms at Chemist4U (GPhC 9012464). Branded Vitabiotics Ultra Vitamin D 400 IU cost 4.17p a tablet at Sainsbury's. A Vitl vitamin D subscription works out at 18.17p a day.
- NHS daily dose: 10 micrograms (400 IU)
- Adult upper limit: 100 micrograms (4,000 IU) a day
- Valupak 25 micrograms, 60 tablets, Chemist4U: £1.29, 2.15p a tablet
- Vitabiotics Ultra Vitamin D 400 IU, 96 tablets, Sainsbury's: £4.00, 4.17p a tablet
- Vitl Vitamin D3 subscription, 30 softgels: £5.45 a month
- 360 days of Valupak including one delivery charge: £11.69
Checked 22 October 2026. Cite as: The Dose Club, Vitamin D price per 10 microgram dose: own brand against branded, https://www.doseclub.co.uk/vitamins/vitamin-d-price-per-dose/, checked 22 October 2026.
Sources
- Vitamin D (NHS website) (checked 22 October 2026)
- Vit Store Vitamin D 12.5ug Tablets 180s (Savers) (checked 22 October 2026)
- Valupak Vitamin D3 1000IU (25mcg), 60 tablets (Chemist4U) (checked 22 October 2026)
- Healthy Start Children's Vitamin Drops, 10ml, with delivery charges (Chemist4U) (checked 22 October 2026)
- Vitabiotics Ultra Vitamin D 400 IU Everyday Level Tablets x96 (Sainsbury's) (checked 22 October 2026)
- Vitabiotics Ultra Vitamin D 400 IU Tablets 96s (Tesco) (checked 22 October 2026)
- Vitabiotics Vitamin D 1000 IU Optimum Level 96 Mini Tablets (Asda) (checked 22 October 2026)
- Vitabiotics Ultra Vitamin D (Morrisons) (checked 22 October 2026)
- Vitamin D3 Softgels (Vitl) (checked 22 October 2026)
- Vitl home page, subscription delivery terms (Vitl) (checked 22 October 2026)
- Tesco A-Z Multivitamin Tablets and Minerals 90s (Tesco) (checked 22 October 2026)
- ASDA Wellbeing 1 a day A-Z Multivitamins and Minerals 90 Tablets (Asda) (checked 22 October 2026)
- Wellbaby Vit D Drops From Birth To 4 Years 30ml (Sainsbury's) (checked 22 October 2026)
- Better You Dlux Junior Vitamin D Oral Spray 15ml (Tesco) (checked 22 October 2026)
- Getting vitamins (NHS Healthy Start) (checked 22 October 2026)
- Vitamin D (NHS inform, Scotland) (checked 22 October 2026)
Questions people ask
What is the cheapest vitamin D in the UK?
Of the products checked on 22 October 2026, Vit Store Vitamin D 12.5 micrograms at Savers was cheapest at £1.79 for 180 tablets, or 0.99p a day. Its product page showed it as unavailable online, with store collection offered. The cheapest in-stock option found online was Valupak 25 micrograms at Chemist4U, £1.29 for 60 tablets.
How much is 400 IU of vitamin D in micrograms?
400 IU is 10 micrograms. The NHS gives the conversion as 1 microgram equals 40 IU. So a 1,000 IU tablet holds 25 micrograms and the 4,000 IU adult upper limit equals 100 micrograms.
Is a 25 microgram vitamin D tablet too strong?
The NHS sets the adult upper limit at 100 micrograms a day, and 25 micrograms is a quarter of that. The NHS advice dose is 10 micrograms. Children aged 1 to 10 have a lower limit of 50 micrograms and babies under 12 months a limit of 25 micrograms. Ask a pharmacist if you are unsure which strength suits you.
How much does a year of vitamin D tablets cost?
Six packs of Valupak 25 micrograms cover 360 days for £7.74, or £11.69 with one £3.95 Chemist4U delivery charge. Four packs of Vitabiotics Ultra Vitamin D 400 IU cover 384 days for £16.00 at Sainsbury's. Twelve months of Vitl's subscription cost £65.40.
Can I get vitamin D free?
Families on Healthy Start in England, Wales and Northern Ireland get free vitamins containing vitamin D during pregnancy and for children under 4. In Scotland, free vitamin D is available to all pregnant women, breastfeeding mothers and children up to 3, with no income test.