How Much Calcium Do I Need?

Life-Stage Group Daily (elemental) Calcium Intake
Infants
(birth to 6 months)
(6 to 12 months)
 
210 mg/day
270 mg/day
Young Children
(1 to 3 years)
 
500 mg/day
Older Children
(4 to 8 years)
 
800 mg/day
Adolescents and young adults
(9 to 18 years)
 
1300 mg/day
Men and Women
(19 to 50 years)
 
1000 mg/day
Men and Women
(51 and older
 
1200 mg/day

 

Source: National Academy of Science