Vitamin C: authorised health claims in Great Britain

Short answer. There are 15 authorised health claims for Vitamin C on the Great Britain nutrition and health claims register (published 19 May 2026). Each can be used only if your product meets its conditions of use, and in its authorised wording or wording with the same meaning.

The authorised claims, word for word

Authorised claim	Conditions of use
Vitamin C contributes to maintain the normal function of the immune system during and after intense physical exercise	The claim may be used only for food which provides a daily intake of 200 mg vitamin C. In order to bear the claim information shall be given to the consumer that the beneficial effect is obtained with a daily intake of 200 mg in addition to the recommended daily intake of vitamin C.
Vitamin C contributes to normal collagen formation for the normal function of blood vessels	The claim may be used only for food which is at least a source of vitamin C as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
Vitamin C contributes to normal collagen formation for the normal function of bones	The claim may be used only for food which is at least a source of vitamin C as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
Vitamin C contributes to normal collagen formation for the normal function of cartilage	The claim may be used only for food which is at least a source of vitamin C as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
Vitamin C contributes to normal collagen formation for the normal function of gums	The claim may be used only for food which is at least a source of vitamin C as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
Vitamin C contributes to normal collagen formation for the normal function of skin	The claim may be used only for food which is at least a source of vitamin C as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
Vitamin C contributes to normal collagen formation for the normal function of teeth	The claim may be used only for food which is at least a source of vitamin C as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
Vitamin C contributes to normal energy-yielding metabolism	The claim may be used only for food which is at least a source of vitamin C as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
Vitamin C contributes to normal functioning of the nervous system	The claim may be used only for food which is at least a source of vitamin C as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
Vitamin C contributes to normal psychological function	The claim may be used only for food which is at least a source of vitamin C as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
Vitamin C contributes to the normal function of the immune system	The claim may be used only for food which is at least a source of vitamin C as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
Vitamin C contributes to the protection of cells from oxidative stress	The claim may be used only for food which is at least a source of vitamin C as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006
Vitamin C contributes to the reduction of tiredness and fatigue	The claim may be used only for food which is at least a source of vitamin C as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
Vitamin C contributes to the regeneration of the reduced form of vitamin E	The claim may be used only for food which is at least a source of vitamin C as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
Vitamin C increases iron absorption	The claim may be used only for food which is at least a source of vitamin C as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.

The claims and conditions are copied from the register. Where the register contradicts itself and the correct reading is shown instead, our note beside the row says so. Check the register itself before you rely on a claim: it is updated from time to time.

Source

Great Britain nutrition and health claims (NHC) register, Department of Health and Social Care, published 19 May 2026. Contains public sector information licensed under the Open Government Licence v3.0.

Not legal advice. Last updated: 1 November 2026.