Bananas!! Cheap and tasty! Actually, it's the potassium in the bananas that helps with restless leg, which most get from opiate withdrawal. I suffer from restless leg syndrome (because of the nerve damage in my lower leg), and used to take a prescription med for it. About two years ago I read how banana's help, and i've been eating two before bedtime ever since. It has also helped me when having restless leg during withdrawals, too.