What do you use to keep potassium levels up while backpacking. I've always been subject to cramps, probably because I sweat a lot. Even in winter. Sports drinks don't do it for me, just not enough minerals. I've really helped myself while home by supplementing the mandatory bananas with potatoes, both Irish and sweet. Most veggies are pretty high in potassium, but heavy. There's nothing like crawling out of sleeping bag to answer a nature call only to be skewered by a leg cramp.