- Vitamin K is an essential nutrient known for its role in blood clotting. Plants make one form of vitamin K (phylloquinone, or vitamin K1) for their use. But your body doesnt use all of the K1 in your diet as is. Instead, the body converts some of this plant form of the vitamin into a different vitamin K molecule: Menatetrenone, or MK-4, a form of vitamin K2.. For some purposes (blood clotting), K1 works fine; but Menatetrenone has unique effects on bone health not shared by phylloquinone
- Fracture victims levels of Menatetrenone are more depressed than are their levels of phylloquinone
- Menatetrenone is able to reduce the creation of osteoclasts (cells involved in the teardown of bone tissue) out of early cell types but again, phylloquinone has no such power.
- Menatetrenone strengthens the bone-building legions of the osteoblasts (cells involved in the manufacture of new bone), mildly increasing both their numbers and their activity.
- Areas where more K2 is consumed in the diet have lower fracture rates.








