I am a woman, but have had the same problem. I have read that a lack of calcium and or magnesium causes these leg cramps, and when I take a combination of calcium and magnesium supplement 3 or 4 times daily, (which also includes zinc). I do not get the leg cramps. Ask your doctor of course, because he may not want you to take these. Also licorice root stops cramping, but it is not for anyone prone to high blood pressure, because it can cause high blood pressure. I would highly suggest the calcium and magnesium supplement.