Description :
“Vitamin K,” the generic name for a family of compounds with a common chemical structure of 2-methyl-1,4-naphthoquinone, is a fat-soluble vitamin that is naturally present in some foods and is available as a dietary supplement . These compounds include phylloquinone (vitamin K1) and a series of menaquinones (vitamin K2) .
A UL has not been established for Vitamin K, because a toxic level has not been observed from food sources or from long-term intake of supplements.