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For food particles to even leave your stomach though, the “gates” of the stomach, the pyloric sphincter, must open. Conveniently, chewing also aids in this process, signaling this event. And speaking of signals, just seeing your food causes your brain to send signals to the pancreas and stomach to secrete digestive acids and enzymes that are essential to digestion. And the longer your food has contact with your taste and smell receptors—the longer you chew each bite—the stronger these signals become. Strong signals mean more digestive molecules, less indigestion, less acid reflux, and superior nutrient absorption.
Chewing your food thoroughly and eating your meals more slowly has another benefit. It might shrink your waistline—and not just because you’ll have less bloating and indigestion. Eating more slowly gives your body a chance to tell your mind that it’s full, so that you stop eating before you go overboard. In a preliminary study presented at the North American Association for the Study of Obesity’s Annual Scientific Meeting in 2004, study subjects ate less when they were instructed to eat more slowly.
Here are some practical tips for chewing more thoroughly and eating more slowly: