Exercise better than calcium for girls' bones

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Study: Teens' fitness habits key to preventing osteoporosis

STATE COLLEGE, Pa. - Got exercise? A recent study indicates that exercise is more important than calcium in developing strong bones in girls and young women.

Researchers at Penn State University and Johns Hopkins University found that even when girls took in far less calcium than the recommended daily allowance, bone strength was not significantly affected, said Tom Lloyd of Penn State's College of Medicine at the Milton S. Hershey Medical Center.

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