[mkarnold1]

The only thing I'm aware of that affects coumadin is vitamin K. As long as you keep your intake level of dark leafy greens, such as spinach or kale, at a normal level you should be fine. And the leg is not the risk, what's at risk is dislodging the clot from it's present location and having it find it's way to the lungs where it's known as a pulmonary embolism.