I found this recipe a while back on the WHO website & have recently run across it again in my files. The recipe is for an electrolyte replacement beverage that could be used instead of Gatorade. This one is not neon & obviously is safer.
Electrolyte replacement is necessary after extreme fluid loss, such as after a bout of diarrhea or vomiting. Athletes drink Gatorade due to the electrolyte loss through perspiration.
3/4 t sea salt
1/2 t backing soda
4 t cream of tarter (or eat 2 bananas for potassium)
1 liter of water
optional: 1T orange juice or 2t lemon juice