Age group	UL males and females (mg/day)
4–6 months	2.2
7–11 months	2.5
1–3 years	3.2
4–6 years	4.5
7–10 years	6.1
11–14 years	8.6
15–17 years	10.7
Adults	12
Pregnant women	12
Lactating women	12

UL: tolerable upper intake level.