Page "Vitamin K" Paragraph 24

Recent research results also demonstrate that the small intestine and large intestine ( colon ) seem to be inefficient at absorbing vitamin K. These results are reinforced by human cohort studies, where a majority of the subjects showed inadequate vitamins K amounts in the body.

This was revealed by the presence of large amounts of incomplete gamma-carboxylated proteins in the blood, an indirect test for vitamins K deficiency.

And in an animal model MK4 was shown to prevent arterial calcifications, pointing to its potential role in cardiovascular disease prevention.

In this study vitamin K < sub > 1 </ sub > was also tested and shown not to prevent arterial calcifications.