- Doctor’s Best natural Vitamin K2 MK-7 with MenaQ7 is a unique formula which is more bioavailable than other forms
- Supports bone health and soft tissue elasticity
- Delivers optimum levels of Vitamin K to bone and soft tissue
- Supports calcium metabolism for maintenance of healthy bone
- MenaQ7® is purified from fermented chickpeas which are naturally rich in vitamin K2.
- Non-GMO, Soy Free, Gluten Free, Vegan
The importance of Vitamin K
Vitamin K, a fat-soluble vitamin, is primarily known for its role in regulating blood coagulation. Vitamin K is required for the activity of specialized proteins that control blood clotting (Coagulation factors II, VII, IX) in a series of metabolic steps known as the coagulation cascade. The daily intake of vitamin K recommended by the National Academy of Sciences is based on the amount needed for biosynthesis of these clotting factors in the liver.
Vitamin K dependant proteins are also found in bone and soft tissue, including osteocalcin, the protein that deposits calcium in bone. The activation of these proteins is dependent upon vitamin K. Whilst osteocalcin is essential for keeping calcium in bones, another vitamin K dependant protein, Matrix Gla Protein, helps calcium from accumulating in soft tissue where it doesn’t belong, thereby supporting vascular health.
Forms of vitamin K
Vitamin K exists in two major forms: phylloquinone and the menaquinones. Phylloquinone, designated as vitamin K1, is the major dietary form in food and supplements. Menaquinones, designated as vitamin K2, are synthesized in the large intestine by gut bacteria. Menaquinones are named MK-7, MK-8 and MK9, according to the length of structurally related molecular side chains attached to the parent molecule. Fermented foods contain substantial amounts of K2, produced by bacteria that cause the fermentation. MK-7 is the primary menaquinone found in fermented foods. MK7, which is the natural form, is more stable in the bloodstream than vitamin K1. Recent research reveals that MK-7 contributes to optimum vitamin K storage in the body, and functions more effectively as a co-factor for the activation of osteocalcin that is so critical for bone strength.
Research on vitamin K2