If you've just eaten and your appetite is still raging, it might be wise to chew on some sugar-free gum.
A study in 2011 found that chewing gum for 45 minutes when hungry reduced appetite - and when the chewers did end up eating, they chose a snack that had 10 percent less calories. Many speculate that this is because the gum replicates the motions of eating without actually swallowing anything, leading your stomach to think that a meal is on the way.