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Vitamin K is a family of structurally similar, fat-soluble vitamers found in foods and marketed as dietary supplements. [1] The human body requires vitamin K for post-synthesis modification of certain proteins that are required for blood coagulation ("K" from Danish koagulation, for "coagulation") or for controlling binding of calcium in bones and other tissues. [2]
"Vitamin K is often overlooked compared to popular vitamins like C and D, yet it plays several critical roles in our body," says Dr. Holiday Durham, Ph.D., MS, RD, a registered dietitian with ...
Get your fill of vitamin K by whipping up a vanilla smoothie, a healthy broccoli slaw salad, or liver and onions. Vitamin K is a fat-soluble vitamin, so you’ll best absorb it in a fat-containing ...
Vitamin K 1-deficiency may occur by disturbed intestinal uptake (such as would occur in a bile duct obstruction), by therapeutic or accidental intake of a vitamin K 1-antagonist such as warfarin, or, very rarely, by nutritional vitamin K 1 deficiency. As a result, Gla-residues are inadequately formed and the Gla-proteins are insufficiently active.
Vitamin K (phylloquinones, menaquinones, and menadiones) Some sources include a fourteenth, choline. [6] Vitamins have diverse biochemical functions. Vitamin A acts as a regulator of cell and tissue growth and differentiation. Vitamin D provides a hormone-like function, regulating mineral metabolism for bones and other organs.
“Vitamin K is a fat-soluble vitamin, so your body stores it in fat tissue and the liver,” Heather Viola, DO, Primary Care Physician at Mount Sinai Doctors-Ansonia, tells Fortune.
VKAs diminish vitamin K levels in the body and inhibit the synthesis of vitamin K dependent clotting factors. [27] Thus, by inhibiting vitamin K, a key element by which the body produces clots, the risk of prolonged bleeding increases. [28] Traditionally, vitamin K has been used as a reversal agent for VKAs.
The availability of reduced vitamin K is of importance for activation vitamin K 2,3-epoxide. The reduction of vitamin K epoxide is then responsible for the carboxylation of glutamic acid residues in some blood-clotting proteins, including factor VII, factor IX, and factor X. [5] [7] VKORC1 is of therapeutic interest both for its role in ...