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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 ...
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]
The National Institutes of Health Office of Dietary Supplements recommends males 19 and older get 120 mcg of vitamin K daily, and females (regardless of pregnancy/lactation status) get 90 mcg of ...
There are two primary types of vitamin K: vitamin K1 and vitamin K2. ... and men ages 19 and older require 120 micrograms daily. Most people get enough vitamin K daily, ...
The recommended adequate intake of sodium is 1,500 milligrams (3.9 g salt) per day, and people over 50 need even less." [13] The Daily Value for potassium, 4,700 mg per day, was based on a study of men who were given 14.6 g of sodium chloride per day and treated with potassium supplements until the frequency of salt sensitivity was reduced to 20%.
The gap between recommended daily intake and what are considered safe upper limits (ULs) can be small. For example, for calcium the U.S. Food and Drug Administration set the recommended intake for adults over 70 years at 1,200 mg/day and the UL at 2,000 mg/day. [ 19 ]