Thorne Research, Basic Bone Nurtients, 120 Vegetarian Capsules. Dietary Supplement Featuring calcium, magnesium, vitamin D, and vitamin K in one product The synergy of four highly-researched nutrients that are essential for bone health - now available in one product. The most well-researched form of vitamin K2 (MK-7 as MenaQ7). Vitamin D (as vitamin D3) - minus the preservatives and lactose diluents found in many other vitamin D products. Calcium (as DiCalcium Malate) and magnesium (as DiMagnesium Malate) - very well-absorbed forms of calcium and magnesium, in concentrated forms that allow more elemental calcium and magnesium per capsule. Vitamin K pairs up with vitamin D, much like magnesium pairs up with calcium. Both vitamin K and magnesium help keep calcium in the bones and out of the blood vessels and other soft tissues. Whenever vitamin D and calcium are being taken by a consumer or prescribed by a practitioner, then vitamin K and magnesium should likewise be included in the dail...