Vitamin k2 mk-7, 100mcg naturally occurring from natto. Vitamin k first came to prominence in 1929 when Danish researcher Henrik dam revealed its benefits. Vitamin k is essential to the conversion of the amino acid glutamic acid into gamma-carboxyglutamate. Vitamin k is a group name for a set of related compounds including phylloquinone (k1) and menaquinones (k2's). During recent years, research has shown the development of stronger bones in people eating k2. Some people might have insufficient levels of vitamin k2 for optimal bone and arterial strength.
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