People often cite tryptophan as the cause of Thanksgiving drowsiness, but turkey itself does not actually make you sleepy. Tryptophan is an amino acid that regulates sleep. There's not enough of ...

There's just as much tryptophan in beef and pork asthere is in turkey, so if you eat a big Thanksgiving meal, it's not what's making you sleepy is not the turkey. It's probably the preparations ...