<p>Menaquinone-7 is a fat soluble vitamin which is also known as vitamin K2. Menaquinone-7 is an especial key isomer of vitamin K2 that is produced using Bacillus subtilis. Menaquinone-7 is the active trans-isomer of natural vitamin K2 with the highest bioavailability and longest half-life in blood. This makes Menaquinone-7 also available for tissues outside the liver, namely bones, arteries and soft tissues. It is a powerful cofactor in transporting excess calcium out of the arteries and depositing it into the bones thus prevents hardening of arteries. Menaquinone-7 is very essential for healthy bone and artery.</p>