Medically reviewed by Femi Aremu, PharmD Vitamin D (calciferol) and vitamin K2 (menaquinone) are essential nutrients ...

Vitamin K2 is further broken down into different subtypes, such as MK-4 and MK-7. In the United States, the Food and Drug ...

[45] demonstrated that depressed serum levels of phylloquinone and menaquinone (for the latter, most notably MK-7 ... received vitamin D, minerals, and phytonadione demonstrated a 1.7% reduction ...