Juice the orange, lemon, and lime with a citrus juicer and add the fresh juice to a glass (makes about ½ cup). Then add the salt and additional water. Stir well to combine. Add ice cubes, a straw, and enjoy!
Notes
The total fluid volume of this beverage is only ~ 12oz (if the ice cubes are melted). Therefore, you may need to hydrate with more fluid post-workout to make up total fluid losses.