How Your Body Knows When to Stop Eating

Your body uses short-term and long-term signals to regulate hunger and fullness. Taste and smell can influence how much you eat, while receptors in the stomach and intestines send messages to the brain as food moves through the digestive system. Hormones also play a role. Cholecystokinin from the duodenum, peptide YY from the small intestine and insulin help signal that nutrients are being absorbed and that you may be full. Fat tissue produces leptin, which helps regulate appetite over a longer period. Eating habits can affect weight management, but avoiding food shortly before bedtime is not a guaranteed way to lose weight. Overall calorie intake, food choices, sleep, activity level and individual health needs also matter.

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