Well I was just guilty of passing this rumor along last week but it turns out that its just that…a rumor; triptophan which is an essential amino acid found in turkey does NOT cause drowsiness. According to the NY Times, Snopes, NPR, LiveScience, Wired and Texas A&M University it just isn’t true. It turns out there is just as much triptophan in other meats and even more in nuts. So next time you are talking turkey with someone about thanksgiving sleepytime you can be the wise guy (or gal) who says “actually the sleepiness isn’t caused by triptophan, its just you’re body getting tired from trying to process all that food you just ate.
Food Chemistry is pretty cool stuff!