For long fasts, where all you drink is water, there is a recipe for "snake juice", which is a blend of electrolytes that matches the body so your electrolyte balance doesn't get out of whack. It is far too salty to drink at full strength if you aren't fasting, but if you mix it into more water then it should be exactly what you need. You can then add flavoring or sweetener as desired:
- 2L Water
- 1 tsp potassium chloride (NoSalt/salt substitute)
- 1 tsp sodium bicarbonate (baking soda)
- 1/2 tsp sodium chloride (Himalayan pink salt or mineral salt)
- 1/2 tsp magnesium chloride.