Vitamin K has long been associated with proper clotting of blood to heal cuts and bruises. It is now being investigated as an important vitamin for bone health as well.
A recent summary report from the University of Wisconsin states that scientific studies show “Vitamin K has a positive effect on bone mineral density and decreases fracture risk.” The authors point out that typical diets in the US do not include enough foods containing vitamin K.
Foods rich in Vitamin K are:
•Vegetable oils (olive, canola)
The authors recommend more large-scale studies to fully determine how much Vitamin K people should get to maintain good bone health. They also suggest more careful studies looking at the possible negative effects on bones from “blood thinners” (anticoagulants like Cumadin) that work by inactivating Vitamin K.
Pearson, DA, 2007. “Bone Health and Osteoporosis: the Role of Vitamin K and Potential Antagonism by Anticoagulants,” Nutr Clin Pract. http://ncp.aspenjournals.org/cgi/content/abstract/22/5/517
Walsh, M., 2007. “Osteoporosis: Vitamin D and Vitamin K,” SpineUniverse website.
About.com, 2006. “Vitamin K Benefits Bones.” http://osteoporosis.about.com/od/dietsupplements/a/Vitamin_K.htm