@Butrflynet,
You may be on to something regarding the diet. I read again the list of food items that are high in vitamin k and it seems most green vegetables, especially the leafy green ones, are the culprits that are high in vitamin k. We've been eating lettuce salads regularly for lunch as we have always done.
btrflyner :
came across your post today .
i've been on coumadin since december 2009 .
my INR ( coumadin level ) is usually aound 2.4 - 2.5 but has been higher and lower at times .
my doctor talked about being careful with " greens " and beef liver .
there seems to be a lot of wrong info on the web re. " greens " etc.
finally found a site that i trust a little more .
will be going for test and see doctor next week ( perhaps to educate him - no better not ) .
here is one of the sites ( another to follow ) :
http://ods.od.nih.gov/factsheets/cc/coumadin1.pdf
http://www.nal.usda.gov/fnic/foodcomp/Data/SR18/nutrlist/sr18w430.pdf