Vitamin C

US Daily Value for adults: 90 mg · unit on labels: mg

Reference intakes

ValueUnited StatesChinaEuropean Union
Label reference valueBasis of the % on labels, fixed by each regulation; not a recommended intake90 mgDV · Adults and children 4+1100 mgNRV380 mgNRV5
Recommended intake, adults90 mg (men), 75 mg (women)RDA · Adults 19+2100 mgRNI · Adults 18+4110 mg (men), 95 mg (women)PRI6
Upper intake level2,000 mgUL · Adults 19+22000 mgUL · Adults 18+4Not derived (ND)UL7
  1. FDA, 21 CFR 101.9(c)(8)(iv), Daily Values for adults and children 4 years and older
  2. NIH Office of Dietary Supplements, Vitamin C fact sheet for health professionals (2025)
  3. 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)
  4. Chinese Nutrition Society, Chinese Dietary Reference Intakes (DRIs 2023) (2023)
  5. Regulation (EU) No 1169/2011, Annex XIII Part A, nutrient reference values (consolidated text) (2011)
  6. EFSA NDA Panel, Scientific Opinion on Dietary Reference Values for vitamin C (2013)
  7. 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.