| NRV | 800 mg |
|---|---|
| 15% NRV (minimum for most claims) | 120 mg |
| Example ingredient form | calcium carbonate or calcium citrate |
| Authorised claims (examples) | 7 |
Showing Calcium in the nutrient table
Give the amount of Calcium per daily dose, in mg, and the %NRV. A daily dose of 400 mg works out as 400 ÷ 800 × 100 = 50% NRV. Check other doses with our %NRV calculator.
The nutrient table names the nutrient. The ingredients list names the form used, such as calcium carbonate.
Is there a maximum dose?
The UK has no legal maximum for calcium in food supplements. The Department of Health and Social Care advice, published on the NHS website, is: 1,500 mg or less a day is unlikely to cause harm.
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 (120 mg).
- “Calcium contributes to normal blood clotting”
- “Calcium contributes to normal energy-yielding metabolism”
- “Calcium contributes to normal muscle function”
- “Calcium contributes to normal neurotransmission”
- “Calcium contributes to the normal function of digestive enzymes”
- “Calcium is needed for the maintenance of normal bones”
- “Calcium is needed for the maintenance of normal teeth”
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
Calcium carbonate is about 40% calcium, so 1,000 mg of carbonate gives about 400 mg of calcium. Put the calcium figure in the table, not the compound weight.
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.