Vitamin B12
US Daily Value for adults: 2.4 mcg · unit on labels: mcg
Reference intakes
| Value | United States | China | European Union |
|---|---|---|---|
| Label reference valueBasis of the % on labels, fixed by each regulation; not a recommended intake | 2.4 mcgDV · Adults and children 4+1 | 2.4 mcgNRV3 | 2.5 mcgNRV5 |
| Recommended intake, adults | 2.4 mcgRDA · Adults 19+2 | 2.4 mcgRNI · Adults 18+4 | 4 mcgAI6 |
| Upper intake level | Not listed | Not listed | Not derived (ND)UL7 |
- FDA, 21 CFR 101.9(c)(8)(iv), Daily Values for adults and children 4 years and older
- NIH Office of Dietary Supplements, Vitamin B12 fact sheet for health professionals (2025)
- GB 28050-2011 General rules for nutrition labelling of prepackaged foods, Appendix A nutrient reference values (NRV); value unchanged in GB 28050-2025, Appendix A (published 16 March 2025, in force 16 March 2027) (2025)
- Chinese Nutrition Society, Chinese Dietary Reference Intakes (DRIs 2023) (2023)
- Regulation (EU) No 1169/2011, Annex XIII Part A, nutrient reference values (consolidated text) (2011)
- EFSA NDA Panel, Scientific Opinion on Dietary Reference Values for cobalamin (vitamin B12) (2015)
- EFSA, Tolerable upper intake levels for vitamins and minerals (Scientific Committee on Food / NDA Panel) (2006)
Label values (DV, NRV) are the reference points behind the percentages on labels. Recommended intakes and upper levels are quoted from the bodies named; they vary by age, sex and life stage, and they are not advice.