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

Males EAR RDA AI UL
0-6 months - - 2 mg 4 mg
7-12 months 2.5 mg 3 mg - 5 mg
1-3 years 2.5 mg 3 mg - 7 mg
4-8 years 4 mg 5 mg - 12 mg
9-13 years 7 mg 8 mg - 23 mg
14-18 years 8.5 mg 11 mg - 34 mg
19-30 years 9.4 mg 11 mg - 40 mg
31-50 years 9.4 mg 11 mg - 40 mg
50-70 years 9.4 mg 11 mg - 40 mg
70 years and older 9.4 mg 11 mg - 40 mg
Females EAR RDA AI UL
0-6 months - - 2 mg 4 mg
7-12 months 2.5 mg 3 mg - 5 mg
1-3 years 2.5 mg 3 mg - 7 mg
4-8 years 4 mg 5 mg - 12 mg
9-13 years 7 mg 8 mg - 23 mg
14-18 years 7.3 mg 9 mg - 34 mg
19-30 years 6.8 mg 8 mg - 40 mg
31-50 years 6.8 mg 8 mg - 40 mg
50-70 years 6.8 mg 8 mg - 40 mg
70 years and older 6.8 mg 8 mg - 40 mg
Pregnancy EAR RDA AI UL
less than 18 years 10.5 mg 12 mg - 34 mg
19-30 years 9.5 mg 11 mg - 40 mg
31-50 years 9.5 mg 11 mg - 40 mg
Lactation EAR RDA AI UL
less than 18 years 10.9 mg 13 mg - 34 mg
19-30 years 10.4 mg 12 mg - 40 mg
31-50 years 10.4 mg 12 mg - 40 mg
Reference: Dietary Reference Intakes (DRIs): Recommended Intakes for Individuals, Food and Nutrition Board, Institute of Medicine, National Academies, 2010