Group	Adequate Intake (mg/day)
Infants
Birth - 6 months	210
6 months - 1 year	270
Children
1 - 5 years	500
4 - 8 years	800
Adolescents
9 - 18 years	1,300
Adults
19 - 50 years	1,000
Over 50 years	1,200
Pregnant and Lactation (no extra needed)
14 - 18 years	1,300
19 and over	1,000