Low potassium levels, also called hypokalemia, can affect people of all ages. Sometimes the condition is the result of a temporary condition--for example, if you perspire a lot during sports or intense exercise and you don't replace the water you've lost.
Diarrhea in infants. Children who have diarrhea may have less energy, dry eyes, or a dry, sticky mouth. They may also not wet their diaper as often as usual. Give your child fluids for the first 4 to 6 hours. At first, try 1 ounce (2 tablespoons) of fluid every 30 to 60 minutes. If you are nursing, keep breastfeeding your infant. If you are using formula, use it at half strength for 2 to 3 feedings after the diarrhea starts. Then begin regular formula feedings again.
BRAT Diet. Following the BRAT diet may help settle your stomach and is particularly helpful if you've had diarrhea episodes. The diet consists of bananas, rice, applesauce and toast. These foods are gentle on the digestive system and also may help you produce firmer stools.