I had a similar success with taking magnesium to control restless leg syndrome. As some people no doubt remember there are a few speciality drugs ( which you see TV commercials about) that are designed to treat RLS, but I have found that regular magnesium supplementation works very well. I have even done a few inadvertent 'tests' by forgetting to take it with me when I travel that has reinforced the role it has in helping my RLS.