Tooting too much? Check the sweetener in your gum. Researchers say up to 56 percent of Americans are sensitive to sorbitol, an artificial sweetener added to many sugar-free gums and candies that can leave gum-smackers feeling bloated and crampy. Recent studies also show the ingredient doubles the body’s normal gas production, since our intestinal bacteria naturally converts it into hydrogen gas. Quick Fix: Try chewing a sorbitol-free brand of gum for a few days (check product labels to ensure you're buying a problem-free pick). According to University of Kentucky researchers, your symptoms could disappear in as little as 72 hours!