| An overview with ref.74 refer to the classification, distribution , source of the vitamin K, and their function and application on bone health. Vitamin K-insufficiency should be a basic and key factor for human bone. As a kind of vitamin K, the menaquinones is more efficient and sensitive to bone than phylloquinone, especially in the synergistic effect of menaquinones with mostly anti-osteoporotic and osteoporosis patient with other disease. |