The amount of vitamin D recommended daily, from food or dietary supplements, in a report Tuesday from the Institute of Medicine:
_Ages 1-70: 600 international units.
_Ages 71 and older: 800 IUs.
Calcium and vitamin D must be taken together to build and maintain strong bones. Here are the recommended daily levels of calcium:
_Ages 1-3: 700 milligrams.
_Ages 4-8: 1,000 mg.
_Ages 9-18: 1,300 mg.
_Ages 19-70: 1,000 mg _ but for women the amount rises to 1,200 mg at age 51.
_Ages 71 and older: 1,200 mg.