How can I help my daughter have strong bones?

Act now to help her build strong bones to last a lifetime. Girls ages 9-18 are in their critical bone-building years. Best Bones Forever!™ is a national education effort to encourage girls ages 9-14 to eat more foods with calcium and vitamin D and get more physical activity. There is also a Web site for the parents. This site gives parents the tools and information they need to help their daughters build strong bones during the critical window of bone growth — ages 9-18.

This answer is based on source information from National Women's Health Information Center.