“…I agree with the authors that the mechanisms involved are unclear, whereas accumulating evidence would not support the direct causality link between vitamin K status and aBMD in the femoral neck. As I have recently pointed out, (2) the latest meta-analysis reconfirmed that use of vitamin K antagonists did not cause an increased risk of fractures at least undoubtedly in the hip (OR 0.91, 95% CI, 0.69 to 1.20). (3) Here I would like to address the present timely and important issues from a different point of view.…”