How Does Drinking Sprite or 7-Up Help in Curing Loose Bowel Movements or Diarrhea?

WebMD says that clear fluids such as uncaffeinated soda are helpful as a supportive treatment for diarrhea, although they do not provide a cure. This means that Sprite, 7-Up and similar beverages provide vital hydration to replace the fluids lost during a bout of diarrhea.