Large doses of Tryptophan can make you sleepy, but the amount you get in turkey doesn’t come close. Thanksgiving meals make you sleepy because you eat a huge meal. Eat a huge meal without turkey and you will be tired, eat a normal sized meal with turkey and you won’t be more tired than any other meal.
Tryptophan makes you sleepy on Thanksgiving.
Large doses of Tryptophan can make you sleepy, but the amount you get in turkey doesn’t come close. Thanksgiving meals make you sleepy because you eat a huge meal. Eat a huge meal without turkey and you will be tired, eat a normal sized meal with turkey and you won’t be more tired than any other meal.