For the past month or so I have been having really painful charlie-horses (cramps) in my legs and feet at night. From what I understand, this is from a lack of potassium. In checking my FitDay results I find I just have --- in the potassium column, so apparently I'm not getting any from natural foods. I am taking a one-a-day vitamin that says it has 2% potassium, plus a potassium supplement (but it only says 3%) So--where are you guys getting your potassium from? In checking with the druggist he said I'd need a prescription to get anything higher in potassium from him.