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Phytomenadione, also known as vitamin K 1 or phylloquinone, is a vitamin found in food and used as a dietary supplement. [6] [7] It is on the World Health Organization's List of Essential Medicines. [8] It is used to treat certain bleeding disorders, [7] including warfarin overdose, vitamin K deficiency, and obstructive jaundice. [7]
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]
For adults 19 years and older, the recommended daily intake of vitamin K is 120 micrograms for men and 90 micrograms for women. “Vitamin K1 is the only form available in the U.S. as a supplement ...
Women ages 19 and older need 90 micrograms of vitamin K per day, and men ages 19 and older require 120 micrograms daily. Most people get enough vitamin K daily, per the National Institutes of ...
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.
There's vitamin K1, which is found primarily in dark leafy greens and serves primarily to clot blood to prevent excess bleeding, Washington, D.C.-based dietitian Caroline Thomason, R.D., tells USA ...