my father is schedualed for vascular surgery on his right leg on friday and has been on warferin.  his blood is thin, 4.6. he has stopped the medication til the surgery.  would it help thicken his blood to now go ahead and eat green leafy vegetables, grapes, things with vitamin k?
Hello and welcome to Chat Doctor, Green leafy vegetables are rich in iron, so consumption of green leafy vegetables will lead to increase in iron content and improve the hemoglobin but will not affect the thickness of blood. Warfarin is stopped before surgery to avoid excessive bleeding during surgery, however, this is only temporary. The Chat Doctor. Consumption of green leafy vegetables and fruits is good as it improves hemoglobin levels. Thanks and take care