This is about the best all-around recipe for Re-Hydration drink—- this replaces Pedialyte and Gatorade / sports drinks, a lot cheaper too.
Mix as follows and you can pre-mix into unit dose packets for use while you are on the move.

In a 1 L container mix the following
1/2 teaspoon salt substitute �KCl aka �NU-salt�
1 pinch Epson salt MaSo4–optional add ½ tsp Himalayan salt
2 tablespoon sugar [omit to use in Jell-O or instant potatoes]
Kool-aid to taste    [omit to use in Jell-O or instant potatoes]
Chill and serve —

BTW, Kool-aid comes in a colorless version too for when the person is vomiting. .

It is always better to prevent de-hydration by drinking water. How much should you drink a day? It is NOT the oft repeated 8, 8 ounce glasses.  For the basic amount take your weight in pounds and divide by 2 = the number of ounces you should drink a day. This amount assumes that you are sitting at a desk. The best way to know that you are drinking enough is to check your urine. Normal healthy urine is clear to straw color with no odor. In babies we like to see 8-12 wet diapers a day. Most adults should do the same � ahhh EXCEPT hopefully without diapers.

Are there other recipes? Yup, just like IVs you can mix this to replace electrolytes that lab work shows are missing.