<<Disclaimer: Verify this information before applying it to your situation.>> There is a delicate balance of chemicals needed to safely and adequately rehydrate your depleted system. Professionals recommend commercial drinks for this purpose; e.g. Lytren, Rehydralyte, which replace fluids and electrolytes in amounts that are best used by your body. Sports drinks (Gatorade, PowerAde, All Sport) and other sugared drinks will replace fluid, but most contain too much sugar (which can make the diarrhea worse) and not enough of the other essential ingredients. Plain water won't provide any necessary nutrients or electrolytes. You can make an inexpensive home-made rehydration drink. However, do not give this homemade drink to children under age 12 (use Pedialyte). Measure all ingredients precisely. Small variations can make the drink less effective or even harmful. o 1 quart water o 1/2 teaspoon baking soda o 1/2 teaspoon table salt o 3 to 4 tablespoons sugar o If available, add 1/4 teaspoon salt substitute ("Lite Salt") Take/give small sips of a rehydration drink if vomiting or diarrhea has lasted longer than two to four hours. Gradually increase the amounts as symptoms subside.