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2006-08-03 22:00:37 · 4 answers · asked by Anonymous in Food & Drink Other - Food & Drink

4 answers

Like many protein foods, turkey contains the essential amino acid tryptophan. Tryptophan is used to produce the B-vitamin, niacin, which is used to produce serotonin, a neurotransmitter that exerts a calming effect and regulates sleep.

There are other protein foods that contain a larger amount of tryptophan:
100 grams of roasted turkey contains .333 grams of tryptophan
100 grams of Swiss cheese contains .401 grams of tryptophan
100 grams of roasted pork loin contains .341 grams of tryptophan

While turkey often receives the blame for making people sleepy after the Thanksgiving feast, it is actually a carbohydrate-rich (not protein-rich) meal that increases the level of tryptophan and this leads to serotonin synthesis. Carbohydrates stimulate the pancreas to secrete insulin. Some amino acids that compete with tryptophan leave the bloodstream and enter muscle cells. This causes an increase in the relative concentration of tryptophan in the bloodstream. Serotonin is synthesized and the familiar sleepy feeling is the result.

In addition, a large holiday meal usually includes alcohol (which is a central nervous system depressant), overeating and a higher level of fatty foods (which all require a lot of energy to digest). Each of these factors contributes to after-dinner fatigue. In summary, the unusually large, multi-coursed, carbohydrate-rich meal eaten on Thanksgiving is more likely the cause of drowsiness. After all, in March, one does not get sleepy after eating a turkey sandwich.

2006-08-04 04:04:56 · answer #1 · answered by braingamer 5 · 0 0

Tryptophan

2006-08-04 05:05:26 · answer #2 · answered by cornerstonefaith1 3 · 0 0

i nva tried turkey b4!

only a small piece of it
and boi is it tasty and i dun feel slpy.

2006-08-04 05:05:24 · answer #3 · answered by muhuehue 4 · 0 0

triptophin(misspelled)

2006-08-04 05:06:37 · answer #4 · answered by sickcured? 3 · 0 0

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