This formula provides our Nutrient 950 without iron formula, enhanced with vitamin K₁ and vitamin K₂. Vitamin K₁, phylloquinone, is the most common form of vitamin K and is found in plants and green vegetables. This formula also provides the most active and bioavailable forms of vitamin K₂, menaquinone-7 (MK-7) and menaquinone-4 (MK-4). Studies indicate that vitamin K₁ and MK-4 are primarily concentrated in the liver, while MK-7 concentrates in extra-hepatic tissues. Vitamin K₂ encourages osteocalcin to bind to calcium and promote healthy bone mineralization. Vitamin K₂, as MK-7, is especially important for maintaining healthy arterial calcium metabolism, supporting healthy vascular elasticity. Recent studies indicate that vitamin D also potentiates the activity of vitamin K, providing synergistic support for bone health and blood vessel function. This formula provides 1,000 i.u. vitamin D.