Vitamin K2 Supplementation Improves Insulin Sensitivity via Osteocalcin Metabolism: A Placebo-Controlled Trial.
Hyung Jin Choi, MD, Juyoun Yu, BS, Hosanna Choi, BS, Jee Hyun An, MD, Sang Wan Kim, MD, PHD, Kyong Soo Park, MD, PHD, Hak C. Jang, MD, PHD, Seong Yeon Kim, MD, PHD and Chan Soo Shin, MD, PHD. Diabetes Care 2011 Sep; 34(9): e147-e147.