The large majority of the body’s calcium is stored in bones and teeth to help keep their structural strength and to establish reserves to conserve levels in the blood, muscles, and intracellular fluid.
Recommended Daily Allowances (RDA) for calcium were established by the Institute of Medicine (IOM) based on age and gender. Men between 19-70 years old require 1,000 mg calcium daily, whereas men over 71 years need 1,200 mg per day.
Women between the ages of 19-50 years old need 1,000 mg calcium per day and those over 50 years old need 1,200 mg per day.4 The Tolerable Upper Intake Level (UL) of calcium for men and women older than 18 years of age is 2,500 mg per day.4