Turkey doesn't cause your food coma...
Turkeys may have won the heart of Benjamin Franklin, but they’ve been getting a bad rap ever since — often blamed as the reason people become sleepy after the Thanksgiving meal. This chemical in the turkey is blamed for the desire to nap. But the National Center for Biological Information says it’s not Tryptophan, a chemical present in turkey that’s known for inducing a desire to nap that’s to blame. Pure tryptophan must reach the brain for it to induce sleep not the traces present in turkey. It's the holiday hustle and bustle that gets you tuckered out.
....but overeating does!
During the traditional Thanksgiving meal, the average American consumes 3,000 calories, much more than most people’s bodies are accustomed to digesting. As a result of this glut of food waiting to be digested, your body shifts energy to digestion, which leaves you tired. See, it’s gluttony not turkey to blame for your exhaustion!