| NRV | 5 µg |
|---|---|
| 15% NRV (minimum for most claims) | 0.75 µg |
| Example ingredient form | cholecalciferol (D3) or ergocalciferol (D2) |
| Authorised claims (examples) | 7 |
Showing Vitamin D in the nutrient table
Give the amount of Vitamin D per daily dose, in µg, and the %NRV. A daily dose of 25 µg works out as 25 ÷ 5 × 100 = 500% NRV. Check other doses with our %NRV calculator.
The nutrient table names the nutrient. The ingredients list names the form used, such as cholecalciferol (D3).
Is there a maximum dose?
The UK has no legal maximum for Vitamin D in food supplements. The Department of Health and Social Care advice, published on the NHS website, is: No more than 100 µg (4,000 IU) a day for adults and children aged 11 to 17; 50 µg for ages 1 to 10.
Authorised health claims
These are examples of authorised claims on the GB nutrition and health claims register. Use them word for word or with wording that means exactly the same, and only when the daily dose provides at least 15% of the NRV (0.75 µg).
- “Vitamin D contributes to normal absorption/utilisation of calcium and phosphorus”
- “Vitamin D contributes to normal blood calcium levels”
- “Vitamin D contributes to the maintenance of normal bones”
- “Vitamin D contributes to the maintenance of normal muscle function”
- “Vitamin D contributes to the maintenance of normal teeth”
- “Vitamin D contributes to the normal function of the immune system”
- “Vitamin D has a role in the process of cell division”
Check the full register entry before you print: some claims have extra conditions. See our health claims guide and how to check a claim on the register.
Labelling notes
Show vitamin D in µg. You can add IU alongside, for example “25 µg (1000 IU)”. Because the NRV is only 5 µg, common doses give very high %NRV figures such as 500% or 2000%, which is correct.
Check before you print. Claims and dose advice are summarised from the GB nutrition and health claims register and the NHS vitamins and minerals pages, as of October 2026. Confirm your final wording against the register.