Is it safe for me to diet and lose weight while taking warfarin?

You should talk with your doctor if you are thinking about going on a weight-loss diet (or making any other changes to your diet) while you are taking warfarin. Food can affect how well your warfarin works. You should eat a normal, well-balanced diet, but avoid eating unusually large amounts of foods that contain a lot of vitamin K. Your doctor or pharmacist can give you a list of foods (like leafy green vegetables) that contain a lot of vitamin K.