Prevent stress fractures: Up your calcium, vitamin D intake

A new study suggests revving up on calcium and vitamin D supplements could help prevent stress fractures in active young women.

Researchers say very active women who took higher-than-recommended doses for eight weeks had fewer stress fractures than women who got dummy pills. The study of Naval recruits was funded by the Department of Defense.

One researcher says scientists were surprised the calcium and vitamin D supplements made a significant difference in such a short period of time.

The government recommends 1,000 milligrams of calcium and 200 international units of vitamin D per day for women ages 19 to 50.

The women in the study received 2,000 milligrams of calcium and 800 IU's of vitamin D. Experts say the results may be of interest to young female athletes as well as women in the military.

Copyright 2007  Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.