drtbear1967
Musclechemistry Board Certified Member
Most people attribute eating turkey, which is high in the amino acid tryptophan, to being tired. This isn't entirely true. Tryptophan is the body's source of serotonin, the "feel good" neurotransmitter. Most anti-depressants, as well as street drugs like Molly affect serotonin levels. The problem is tryptophan can't cross the blood-brain barrier, so it needs insulin(carbs) to do so. Insulin is known to cause drowsiness, and usually thanksgiving dinners include tons of carbs. This is most likely what's making you tired, and also feel good(why people binge eat on junk food is to help increase serotonin levels). Serotonin also is a precursor to melatonin, which also can make you tired. So don't blame the turkey, and have a great thanksgiving!!
