Be sure to eat your leafy green vegetables; they're full of this "special" vitamin that makes the blood clot
[DOC] [TLE] Coumadin, warfarin, and blood clots: ClotCare [PAR] Warfarin interferes with the body's ability to make a blood clot (see How does ... 
get vitamin K from many of the foods you eat (especially green vegetables and 
certain oils).