Stir baking soda and salt into water until dissolved.
Add orange juice and stir gently to mix. The mixture may foam slightly.
Pour into a glass or sippy cup to serve.
Sip slowly to rehydrate.
It is fine to dilute this electrolyte drink more if desired.
Do not add more salt or baking soda than specified in this recipe, as too much sodium is dangerous during dehydration.
You can substitute coconut water or other natural fruit juices for the orange juice.
Pour into a popsicle mold and freeze for two hours to make your own electrolyte popsicles! These popsicles can make rehydrating more enjoyable, and they can also soothe a sore throat. Kids absolutely love them. ;)