It's midnight. You've had a healthy dinner and told yourself you were done eating for the day. But you're craving chips...and mac and cheese...and ice cream. If you can't go to bed without giving in, at least satisfy your hunger the smart way—by picking a healthier alternative to the sweet or salty snack you're craving. For suggestions, we reached out to Devin Alexander, celebrity chef, New York Times best-selling author, and host of America’s Chefs on Tour, who shared these 10 snack substitutions.