Iodine

US Daily Value for adults: 150 mcg · unit on labels: mcg

Reference intakes

ValueUnited StatesChinaEuropean Union
Label reference valueBasis of the % on labels, fixed by each regulation; not a recommended intake150 mcgDV · Adults and children 4+1150 mcg; 120 mcg from 16 March 2027 (GB 28050-2025)NRV3150 mcgNRV5
Recommended intake, adults150 mcgRDA · Adults 19+2120 mcgRNI · Adults 18+4150 mcgAI6
Upper intake level1,100 mcgUL · Adults 19+2600 mcgUL · Adults 18+4600 mcgUL7
  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, Iodine fact sheet for health professionals (2024)
  3. GB 28050-2011 General rules for nutrition labelling of prepackaged foods, Appendix A nutrient reference values (NRV); revised value from 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 iodine (2014)
  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.