My alternative to gatorade is these electrolyte replacement capsules, I use these because they are calorie free and purely electrolytes.
http://www.beleafhealth.com/dietary-supplements/sports-fitness/electrolyte-replacement-solution
My alternative to gatorade is these electrolyte replacement capsules, I use these because they are calorie free and purely electrolytes.
http://www.beleafhealth.com/dietary-supplements/sports-fitness/electrolyte-replacement-solution
more expensive, but all natural: coconut water