Calcium

calcium Calcium is the most prevalent mineral in the human body. About 99% of the body's calcium resides in the bones and teeth, and the remaining 1% is found in other body fluids and cells.

Functions

Calcium's functions include:
  • Builds bones, both in length and strength
  • Helps bones remain strong by slowing the rate of bone loss with age
  • Helps muscles contract
  • Helps the heart beat
  • Plays a role in normal nerve function, transfers nerve impulses
  • Helps blood clot during bleeding
  • Builds healthy teeth (in kids)

Recommended Intake

The Institute of Medicine offers these recommendations:
Age Group
(in years)
Recommended Dietary Allowance or •Adequate Intake (mg/day)
Females Males
Birth to 6 months 200 milligrams (mg) 200 mg
7-12 months 260 mg 260 mg
1-3 years 700 mg 700 mg
4-8 years 1,000 mg 1,000 mg
9-18 years 1,300 mg 1,300 mg
19-50 years 1,000 mg 1,000 mg
51-70 years 1,200 mg 1, 000 mg
71 years and older 1,200 mg 1,200 mg
Pregnant or lactating teens 1,300 mg n/a
Pregnant or lactating adults 1,000 mg n/a

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