Postprandial state

Postprandial somnolence (colloquially known as the itis, food coma, food drunk, after dinner dip, or postprandial sleep) is a normal state of drowsiness or lassitude following a meal. Postprandial somnolence has two components: a general state of low energy related to activation of the parasympathetic nervous system in response to mass in the gastrointestinal tract, and a specific state of sleepiness. [Source: Wikipedia ]