Dietary Reference Intakes for Iron in United States (per day)

Males EAR RDA AI UL
0-6 months - - 0.27 mg 40 mg
7-12 months 6.9 mg 11 mg - 40 mg
1-3 years 3 mg 7 mg - 40 mg
4-8 years 4.1 mg 10 mg - 40 mg
9-13 years 5.9 mg 8 mg - 40 mg
14-18 years 7.7 mg 11 mg - 45 mg
19-30 years 6 mg 8 mg - 45 mg
31-50 years 6 mg 8 mg - 45 mg
50-70 years 6 mg 8 mg - 45 mg
70 years and older 6 mg 8 mg - 45 mg
Females EAR RDA AI UL
0-6 months - - 0.27 mg 40 mg
7-12 months 6.9 mg 11 mg - 40 mg
1-3 years 3 mg 7 mg - 40 mg
4-8 years 4.1 mg 10 mg - 40 mg
9-13 years 5.7 mg 8 mg - 40 mg
14-18 years 7.9 mg 15 mg - 45 mg
19-30 years 8.1 mg 18 mg - 45 mg
31-50 years 8.1 mg 18 mg - 45 mg
50-70 years 5 mg 8 mg - 45 mg
70 years and older 5 mg 8 mg - 45 mg
Pregnancy EAR RDA AI UL
less than 18 years 23 mg 27 mg - 45 mg
19-30 years 22 mg 27 mg - 45 mg
31-50 years 22 mg 27 mg - 45 mg
Lactation EAR RDA AI UL
less than 18 years 7 mg 10 mg - 45 mg
19-30 years 6.5 mg 9 mg - 45 mg
31-50 years 6.5 mg 9 mg - 45 mg
Reference: Dietary Reference Intakes (DRIs): Recommended Intakes for Individuals, Food and Nutrition Board, Institute of Medicine, National Academies, 2010