Recent research indicates several important functions for vitamin K beyond its role in blood coagulation, including benefits for bone health and vascular function. Supplies natural vitamin K₂, also known as menaquinone-7 (MK-7), which has the longest half-life in the body compared to other forms of vitamin K. This vitamin K₂ extract is free of soy protein for maximum tolerance by those sensitive to soy. Vitamin K2 helps regulate calcium deposition by directing calcium into the bones and away from the blood vessels and kidneys.