Vitamin D3 + K2 Cofactor Complex was designed to obtain the most benefit from Vitamin D. How well vitamin D delivers to the cell depends upon the amount of other cofactors in the body and if genetic weaknesses are present. Such genetic as the VDR Taq, may hinder vitamin D delivery unless vitamin K is present. Vitamin D, Vitamin K, and the other cofactors, Boron and Zinc Picolinate, in this formula have been show to: Supports Healthy Blood Circulation Promotes Bone Health and Proper Calcium Storage Supports Cardiovascular Health and Blood Sugar Balance Boosts Immune Function This formula includes the patented vitaMK7, a natural vitamin K2 (as MK7) which supports enhanced utilization of calcium in the bloodstream. Thi is a soy-free, vitamin D3 and vitamin K2 in the most bioavailable and bioactive forms. * It is an all-trans natural menaquinone-7 with the highest bioavailability and longest half-life in the blood.* VitaMK7 is shown in human clinical studies to increase osteocalcin (calcium-binding protein) levels, enhancing the body’s ability to utilize calcium in the bloodstream. * An in-vitro study shows vitaMK7 inhibits the production of PGE-2, a prostaglandin that acts as a potent stimulator of bone loss. * It is non-GMO and solvent free and processed under the strictest purity standards.