Thanks for your thoughts. This is similar to what adreno and Sparrow posted earlier. It makes sense to me. I'm at a loss about why drinking something like Pedialyate helps me so much. Normally, I take a potassium supplement (prescription, time released) in the mornings, take salt tablets with meals, and drink 2.5 to 3 liters of plain water during the day (gradually, not all at once). That should be enough, I think. I almost always feel better if I switch in a liter of Pedialyte for one of the liters of water and skip a couple salt tablets. I'm actually not worried about getting too much sodium but I do worry that maybe this is too much potassium to consume on a regular basis. But maybe I'm worried for nothing? My Rx potassium dosage is 10 Meq. The amount in one liter of Pedialyte is twice that, 20 Meq. So that would mean 30 Meq in one day, plus whatever potassium I get in food. I'm vegetarian so lots of fruits, veggies, beans = lots of dietary potassium. I don't know whether that's too much. On the other hand, I'm on fludrocortisone (low dose, 0.05 per day) and that drains potassium. So maybe there's no need to worry. I'd love to talk with one of my doctors about this but they tend to dismiss these details as trivial.