The Quirky Brain: Why eating slowly helps make people feel full

Published: October, 2010

Many diet books advise people to chew slowly, so that they will feel full after eating less food than if they ate quickly. Eating slowly doesn't always work, but when it does, the reason has as much to do with the brain as with the gut.

Scientists have known for some time that a full stomach is only part of what causes someone to feel satisfied after a meal; the brain must also receive a series of signals from digestive hormones secreted by the gastrointestinal tract.

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