Thanksgiving dinner is a beloved American tradition, one that is synonymous with turkey, stuffing, and a side of sleepiness. Many of us have experienced the post-meal drowsiness that seems to follow Thanksgiving dinner, leading some to joke about a “turkey-induced coma.” But what is it about turkey that makes us sleepy? In this article, we will explore the science behind turkey’s somnolent properties and offer tips for avoiding turkey-induced sluggishness.

The Science Behind Turkey’s Somnolent Properties: A Look at Tryptophan and Sleepiness

Tryptophan is an essential amino acid that is often associated with sleepiness. It is found in many foods, including turkey, and is an important building block for protein. The body uses tryptophan to produce the neurotransmitter serotonin, which plays a role in regulating sleep and wakefulness.

When we consume foods that are rich in tryptophan, such as turkey, the body competes to absorb this amino acid with other amino acids that are also present in the food. This can slow down the absorption rate of tryptophan and lead to a slight increase in its concentration in the bloodstream. However, this effect is generally modest and is unlikely to be the primary cause of post-meal sleepiness.

Fact or Fiction: Does Turkey Really Cause Thanksgiving Day Comas?

It is a common misconception that turkey is solely responsible for post-meal drowsiness. In reality, there are several factors that can contribute to feeling sleepy after a big meal, such as overeating and alcohol consumption.

When we eat large quantities of food, our digestive system has to work extra hard to break down and absorb it. This can divert blood flow away from the brain, leading to feelings of grogginess and fatigue. Alcohol can also contribute to sleepiness by promoting the production of adenosine, a neurotransmitter that can induce drowsiness.

The Role of Carbohydrates in Turkey’s Sleep-Inducing Powers

Carbohydrate-rich foods such as mashed potatoes, stuffing, and pumpkin pie can also play a role in post-meal fatigue. When we consume these foods, they are broken down into glucose, which triggers the release of insulin. Insulin helps to move glucose from the bloodstream into our cells, where it is used for energy production or stored as glycogen in the liver or muscles. However, if we consume too many carbohydrates, our body can produce an excess of insulin, leading to a rapid drop in blood sugar levels. This can cause feelings of weakness or lethargy and contribute to sleepiness.

Thanksgiving Day Drowsiness: American Tradition or Biological Response to Turkey?

It is natural to feel sleepy after a large meal, regardless of the specific foods consumed. In many cultures, post-meal napping is considered a normal practice. However, there is also some evidence to suggest that there may be a biological basis for post-meal sleepiness. Studies have shown that consuming a high carbohydrate meal can lead to a short-term reduction in alertness, which may be linked to changes in blood sugar levels and insulin secretion.

How Protein, not Tryptophan, Causes Post-Feast Fatigue

While tryptophan may be responsible for the production of serotonin, it is not the primary cause of post-meal fatigue. In fact, protein-rich foods can be more filling and can require more energy to digest, leading to feelings of lethargy. When we consume protein, the body breaks it down into amino acids, which are used for a variety of functions, such as repairing tissues and producing enzymes. The body also expends energy in the process of digesting protein, which can contribute to feelings of fatigue after a large meal.

Turkey Talk: Debunking Common Myths About Food and Sleep

There are many myths about the relationship between food and sleep, and it is important to separate fact from fiction. For example, warm milk is often touted as a natural sleep aid, but there is little evidence to support this claim. Similarly, while turkey may contain tryptophan, it is not a potent sleep aid on its own.

Instead of relying on specific foods to promote sleep, it is more helpful to focus on overall sleep hygiene practices, such as creating a calming bedtime routine, avoiding screens before bed, and ensuring a cool and comfortable sleeping environment.

Tips for Avoiding Turkey-Induced Sluggishness this Holiday Season

If you want to avoid post-meal fatigue this Thanksgiving, there are several steps you can take. For example, try to pace yourself during the meal, savoring each bite and taking breaks between courses. It can also be helpful to get up and move around after eating, such as taking a walk or engaging in light activity. Finally, some alternative foods can help counteract the sleep-inducing effects of a heavy meal, such as fresh fruit or a light salad.


While turkey may be a traditional part of Thanksgiving dinner, it is not the only factor that can contribute to post-meal fatigue. Overeating, alcohol consumption, and carbohydrate-rich foods can also contribute to feelings of drowsiness. By understanding the science behind the relationship between food and sleep, we can take practical steps to avoid turkey-induced sluggishness this holiday season.

By Riddle Reviewer

Hi, I'm Riddle Reviewer. I curate fascinating insights across fields in this blog, hoping to illuminate and inspire. Join me on this journey of discovery as we explore the wonders of the world together.

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