Vitamers - Vitamin K

Vitamers

Three compounds have the biological activity of vitamin K (Figure 8.6):

●      phylloquinone, the normal dietary source, found in green leafy vegetables;

●      menaquinones, a family of related compounds syn-thesized by intestinal bacteria, with differing lengths of the side-chain;

●      menadiol and menadiol diacetate, synthetic com-pounds that can be metabolized to phylloquinone.