Brush your teeth. Become a regular dental-flosser. Use some mouthwash, chew some sugarless gum or pop a mint. Keeping your mouth busy doing something other than eating is a powerful psychological trick. It may sound weird, but tests back up this decades-old diet tip.
If your mouth feels fresh and clean, logic states, you're less likely to eat because you won't want to ruin the minty freshness with food. Like many of these other tips, it at the very least delays eating, and that's what fighting off a hunger pang is all about. One other physiological benefit: Chewing gum or otherwise keeping the mouth busy tricks the body into thinking it's eating, stops your brain from fixating on hunger and even helps you consume fewer calories later [source: Melanson].