Comparison
Best vitamin D supplement in the UK
The best vitamin D supplement for you comes down to the form (usually D3), whether it is vegan, the amount and the format you will stick with. The NHS advises adults consider a daily 10 microgram (400 IU) supplement in autumn and winter. Below we compare named UK brands across sprays and softgels. Vitamin D contributes to the maintenance of normal bones, muscle function and the immune system.
At a glance
| Brand and product | Source and form | Best suited to |
|---|---|---|
| BetterYou, DLux 1000 Vitamin D Oral Spray | Oral spray (D3) | Preferring a spray to a tablet |
| Wild Nutrition, Food-Grown Vitamin D | Capsule (food-grown) | Preferring a food-grown format |
| Bulk, Vitamin D3 Softgels | Softgel (D3) | Wanting a low-cost everyday option |
| BetterYou, DLux Vegan Vitamin D | Oral spray (vegan D3) | Wanting a vegan source |
The shortlist
New to vitamin D? Start with our plain-English guide to vitamin D for women, which explains the NHS 10 microgram advice and the D3 versus vegan sources. It matters across pregnancy, menopause and the senior years.
How we compared
We shortlist real, named UK brands in each category by desk research: product form, typical dose against NHS and EFSA reference intakes (our dose and evidence constants are dated on the research index), who each product suits, and value for money. We have not hands-on tested these products and don't claim to. No brand pays for inclusion or placement, and we do not rank by commission: as of July 2026 no affiliate link on this site earns us anything; if that ever changes it will be disclosed where the link appears.
Frequently asked questions
What is the best vitamin D supplement in the UK?
There is no single best. The NHS advises adults consider a daily 10 microgram (400 IU) vitamin D supplement in autumn and winter. The sensible choice comes down to the form (usually D3), whether it is vegan, the amount and the format you will stick with. We compare named UK products below.
How did you choose these?
We shortlisted real UK vitamin D brands across spray and softgel formats and D3 and vegan sources, then compared them on source, format, amount and who each suits. We do not rank by commission, and we add a buying link only once it is live. See our methodology below.
How much vitamin D should I take?
The NHS advises adults consider a daily 10 microgram (400 IU) supplement in autumn and winter, and some people are advised to take it all year. Do not exceed label guidance without advice. In pregnancy, follow NHS guidance and check with your midwife.
Is a spray better than a tablet?
Neither is proven better for everyone; it is mainly about what you will use consistently. A spray suits those who dislike tablets, while softgels are a familiar option. Compare the microgram amount per dose and choose the format you will keep up.
This is information, not medical advice, and is not a substitute for a registered clinician. Always read product labels, do not exceed the stated amount without advice, and speak to your GP or pharmacist, especially in pregnancy.
Editor, Her Vitals
Oliver leads Her Vitals's editorial coverage of women's life-stage health and supplements. He curates and reviews existing branded products across trying to conceive, pregnancy, postnatal, perimenopause, menopause and the senior years, weighing what the evidence supports against guidance from bodies such as EFSA, the NHS and NICE, and is clear that the content is information rather than medical advice.
Last reviewed: 8 June 2026
Reviewed by Oliver Mackman, Editor. Editorial review against published guidance; not a clinical review.