Silver Book Fact
Genetics can account for up to 75% of bone mineral density (BMD). Researchers have identified a gene that strongly influences peak bone mass in mice. The gene was not previously known to be involved in bone biology, and can help researchers develop drugs that could prevent or reverse the bone loss that leads to osteoporosis.
NIH Fact Sheet: Osteoporosis. http://report.nih.gov/nihfactsheets/ViewFactSheet.aspx?csid=56