No abstract

A large percentage of adolescent females have low vitamin D status during the winter in Finland, which seems to have negative effects on bone health.

The European Fifth Framework Programme (Contract No. QLK1-CT-2000-00623).

Vitamin D-deficient girls have low cortical BMD and high iPTH concentrations, which are consistent with secondary hyperparathyroidism. A low vitamin D concentration accompanied by high bone resorption (TRAP 5b) may limit the accretion of bone mass in young girls.