Does vitamin K prevent strokes?
You may be overthinking these issues.
Vitamin K would only be contraindicated if you take the medication warfarin (brand name Coumadin). If you are on warfarin, which works by inhibiting the action of vitamin K, you are supposed to limit vitamin K intake and keep it at a constant low level every day. Otherwise, to my knowledge, there is no reason you should not be able to eat vitamin K. Anti-phospholipid antibody production should not be effected by vitamin K intake, and the amount of estrogen in products like Soy should be negligible. I would certainly avoid taking any hormone medications or supplements, but ingredients in basic foods should not increase your estrogen levels enough to be of any concern.
Bottom line, I would not concern yourself with any of these food related issues unless you are specifically taking warfarin (Coumadin), in which case you should be on a stable, low to negligible, amount of vitamin K intake daily.
