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美国每日参考值（DV，成人）：18 mg · 标签常用单位：mg

参考摄入量

数值美国中国欧盟
标签参考值标签上百分比的基准，由各法规规定；不是推荐摄入量18 mgDV · 成人及 4 岁以上儿童115 mgNRV314 mgNRV5
推荐摄入量（成人）8 mg (men); 18 mg (women 19–50), 8 mg (women 51+)RDA · Adults 19+212 mg (men); 18 mg (women 18–49; women 50–64 still menstruating), 10 mg (women 50–64 postmenopausal; women 65+)RNI · Adults 18+411 mg (men, women 40+), 16 mg (women 18–39)PRI6
可耐受最高摄入量45 mgUL · Adults 19+242 mgUL · Adults 18+4No UL derived; safe level of intake 40 mgUL7
  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, Iron 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 iron (2015)
  7. EFSA NDA Panel, Scientific opinion on the tolerable upper intake level for iron (2024)

标签值（DV、NRV）是标签上百分比背后的参考点。推荐摄入量与最高摄入量按所列机构原样引用；它们因年龄、性别与生理阶段而异，且都不是建议。