This study evaluated the effects of vitamin K on bone loss. 40 healthy women after menopause were given either vitamin K or a placebo for 4 weeks. The results showed that the supplementation with vitamin K can be beneficial in the maintenance of bone health. More details can be found in the study.
Noriko Koitaya, Junko Ezaki, Mamoru Nishimuta, Jun Yamauchi, Erika Hashizume, Koji Morishita, Motohiko Miyachi, Satoshi Sasaki, Yoshiko Ishimi