(Photo: Shutterstock)Sugar-Free Gum and Candy
Sugar-free products may be a blessing to dieters and diabetics, but they usually contain artificial sweeteners. Unfortunately, the human body's not designed to process synthetic sugars very well, and they can cause bloating, gas, and even have a laxative effect—not what you want if you don't plan to spend the whole flight in the tiny airplane bathroom. Check the package when you're buying sugar-free gum or candy—many products carry a warning label about these unpleasant side effects.
