Before you go off to procure yourself some vitamine K supplements verify this litterature with your doctor.
http://bloodjournal.hematologylibrary.org/cgi/content/abstract/blood-2006-09-049262v1
http://www.blackwell-synergy.com/doi/abs/10.1111/j.1538-7836.2007.02715.x?cookieSet=1&journalCode=jth
http://www.lef.org/magazine/mag2007/jun2007_report_vitamink_01.htm
http://www.warfarinfo.com/vitamin-K.htm