Does Collagen Make You Sleepy

I’ve always been curious about the link between collagen and sleep. As a health enthusiast, I’ve noticed some folks claim collagen makes them sleepy. Is it fact or placebo? I’ve delved into scientific research to understand the potential sleep-inducing effects of collagen. In this article, I’ll share my findings, discussing how collagen may influence sleep patterns and the right way to consume it for optimal sleep benefits. Let’s unravel the mystery together!

Does Collagen Make You Sleepy

I’m currently diving into the topic of understanding collagen, providing a brief overview. As the most abundant protein in our bodies, collagen is an essential part of our skin, bones, muscles, tendons, and ligaments. It’s also found in many other body parts, including blood vessels and corneas.

Scientifically, collagen is a complex protein made up of over 1,400 amino acids, notably glycine, proline, hydroxyproline, and arginine. While our bodies naturally produce collagen, this production decreases with age, a factor contributing to skin aging and joint issues.

There are different types of collagen, each with distinct roles. Type I, for instance, makes up about 90% of the body’s collagen and is renowned for providing our skin with structure. Type II is found in elastic cartilage and serves as a cushion for our joints. Type III supports the structure of muscles, organs, and arteries, while Type IV helps with filtration and is found in layers of our skin.

I’ve been analyzing studies and found that collagen supplements are marketed to boost skin health, reduce joint pain, and improve gut health. However, the effectiveness of these supplements is still a subject of debate among scientists. Some studies suggest that collagen supplements can stimulate your body to produce more collagen. Others argue that the digestive process breaks down collagen into amino acids, making it no different from other protein sources.

The Biological Role of Collagen

I’ve moved on from understanding collagen in general, and now I’m digging into the biological role of collagen, but it’s clear that this protein is a crucial building block in our bodies. Forming about a third of our body’s protein content, it’s instrumental in maintaining the structure and integrity of our skin, bones, tendons, and cartilage.

Research shows that collagen’s role extends beyond structural functions. It’s involved in many cellular processes, including cell shape and differentiation, migration, and synthesis of other proteins. It’s interesting to note that the loss or alteration of collagen has been associated with many diseases, including osteoarthritis, rheumatoid arthritis, and skin aging.

There’s a fascinating link between collagen and sleep too. Glycine, one of the primary amino acids in collagen, has been found to improve sleep quality. It acts as a neurotransmitter in our brain and nervous system and can induce a calming effect, promoting better sleep.

However, it’s important to be cautious in interpreting this. While there’s evidence to suggest a beneficial relationship between collagen and sleep, it doesn’t mean consuming collagen directly leads to sleepiness. The sleep-enhancing effects of glycine are more likely due to its role in the nervous system rather than its presence in collagen.

Collagen Types and Their Functions

Now that we’ve covered the basics and biological role of collagen, let’s dive into the different types of collagen and what each type does in our bodies. There are at least 16 types of collagen, but the vast majority of the collagen in the body is type I, II, or III. All collagen molecules are composed of three polypeptide chains arranged in a triple helix, with each chain being over 1,400 amino acids long.

Type I collagen, accounting for 90% of your body’s collagen, provides structure to skin, bones, tendons, fibrous cartilage, connective tissue, and teeth. It’s essentially the glue that holds everything together. When it comes to improving skin health and reducing the effects of aging, Type I collagen is the star player.

Type II collagen is primarily located in cartilage, serving as a cushion for our joints. Supplements containing Type II collagen are often used in the treatment of aging joints and certain conditions like arthritis.

Type III collagen, found alongside Type I, supports the structure of muscles, organs, and arteries. It’s crucial for cardiovascular health, and it’s also believed to enhance skin elasticity and firmness.

In essence, the types of collagen vary in their structure and function, but all play a vital role in maintaining the health and integrity of our bodies. It’s important to understand their differences to make informed decisions about collagen supplementation and dietary choices. Understanding how these types of collagen function can help us appreciate their significance and potential benefits.

The Connection Between Collagen and Sleep

As we’re transitioning from the topic of collagen types, I find it fascinating that there’s a connection between collagen and sleep, and I’m eager to delve into this further. Recent studies suggest that collagen, particularly the glycine in it, may promote better sleep quality. Glycine, an amino acid, is a primary component of collagen. I came across a study published in the Journal of Neuroscience which posits that glycine triggers a drop in body temperature, a signal to the brain to enter the sleep mode.

In my analysis, I find it important to note that glycine doesn’t necessarily induce sleep. Instead, it enhances sleep quality by reducing core body temperature and improving the sleep cycle. A 2006 study in Sleep and Biological Rhythms further supports this, demonstrating that glycine supplementation improves sleep quality in humans, possibly by lowering body temperature and inducing a state of tranquility.

However, I’m also conscious of the fact that while collagen may contribute to better sleep, it’s not a magic bullet. Other factors such as stress, caffeine consumption, and screen time significantly impact our sleep quality too. It’s crucial to maintain a balanced diet and healthy lifestyle for optimal sleep health.

How Collagen May Influence Sleep Patterns

Why don’t we delve into how collagen may influence sleep patterns, considering its rich glycine content? Glycine, one of the key amino acids present in collagen, has been shown to impact sleep quality. It’s not that collagen directly makes you sleepy, rather, it can enhance the quality of your sleep.

Research has shown that glycine can improve sleep efficiency, decrease sleep onset latency, and reduce daytime sleepiness. This happens because glycine acts on the nervous system, promoting a calming effect and lowering body temperature, which is a crucial factor in initiating sleep.

A study published in Sleep and Biological Rhythms journal found that participants who took glycine before bedtime had significantly improved sleep quality. They reported feeling refreshed and lively in the morning, unlike their usual groggy state. This shows that glycine, abundant in collagen, has potential sleep-enhancing properties.

However, it’s important to note that our bodies produce collagen naturally, but this production decreases with age. So, incorporating collagen-rich foods or supplements into our diet may be a great way to not only improve skin health and joint flexibility, but also potentially enhance sleep quality.

But, as with any dietary change, it’s essential to consider the broader context. Collagen isn’t a magic bullet for sleep issues. Lifestyle factors like maintaining a regular sleep schedule, limiting caffeine, and managing stress play a significant role in sleep quality. So while collagen may indeed influence sleep patterns due to its glycine content, it should be part of a comprehensive approach to improve sleep.

Scientific Studies on Collagen and Sleep

I’m currently looking into various scientific studies on the relationship between collagen and sleep. Researchers have proposed that collagen, particularly its high content of the amino acid glycine, may improve sleep quality.

A 2006 study published in Sleep and Biological Rhythms found that glycine, when taken before bedtime, improved subjective sleep quality in individuals who had difficulty sleeping. The participants reported less daytime sleepiness and improved cognitive performance during waking hours.

However, it’s important to note that this study focused on glycine, not collagen directly. Collagen is indeed a rich source of glycine, making up about one-third of its amino acid profile, but it also contains a mix of other amino acids. Whether these other components have any effect on sleep is yet to be determined.

Furthermore, a 2015 study published in the Journal of Clinical Sleep Medicine found no significant difference in sleep quality between participants taking a collagen supplement and those taking a placebo. This suggests that any potential benefits of collagen on sleep may be subjective and vary between individuals.

The Potential Sleep-Inducing Components of Collagen

Where exactly are the potential sleep-inducing components in collagen located, and can they really make a significant difference to our sleep patterns? To answer this, let’s dive into the biochemistry of collagen and sleep.

Collagen is a protein, and it’s not the protein itself that might assist with sleep, but the amino acids that compose it. Particularly, glycine, which makes up about a third of collagen’s amino acid profile, has attracted attention. Glycine is known to have a calming effect on the brain, and some studies suggest it can help improve sleep quality.

In a 2015 study published in Neuropsychopharmacology, participants who took glycine before bed experienced less fatigue and more liveliness the following day. This implies that glycine may improve the quality of sleep, leading to a better rested feeling upon waking.

However, it’s important to note that it’s not definitive whether the glycine in collagen is responsible for these sleep benefits. Most collagen supplements have relatively low doses of glycine compared to what was used in the study. Therefore, if you’re solely looking for sleep benefits, a dedicated glycine supplement may be more effective.

Furthermore, other factors can affect sleep quality, such as environmental factors, stress, and diet. While collagen may have potential sleep benefits due to its glycine content, it’s just one piece of the puzzle. It’s also crucial to maintain good sleep hygiene and a balanced diet for optimal sleep health.

Collagen Consumption and Its Effects on Sleep Quality

Collagen Consumption and Its Effects on Sleep Quality

In today’s discussion, we’ll examine how consuming collagen affects sleep quality, but first, it’s important to note that the research on this topic isn’t conclusive yet. While there are theories surrounding the potential benefits of collagen for sleep, they’re based on indirect evidence. It’s key to approach this topic with a critical eye and an understanding of the current scientific landscape.

Some studies suggest that collagen, particularly the glycine it contains, may improve sleep quality. Glycine is an amino acid that’s been studied for its role in promoting better sleep. A study published in Sleep and Biological Rhythms found that glycine improved subjective sleep quality in individuals with poor sleep habits. However, it’s vital to remember that this doesn’t necessarily mean that collagen, which contains glycine, will have the same effects.

Additionally, collagen is a rich source of protein. High-protein diets have been linked with improved sleep quality in several studies, but again, the link is indirect. It’s uncertain whether the protein in collagen specifically contributes to better sleep.

Personal Experiences: Do People Really Get Sleepy

I’ve heard numerous accounts of people claiming to feel drowsy after consuming collagen, but it’s crucial to remember that personal experiences can vary widely. So, let’s delve a bit deeper into the science behind this.

Collagen, a protein found in our bodies, is often taken as a supplement for its potential health benefits. It’s been studied for its effects on everything from skin health to joint pain. However, its potential impact on sleep isn’t as clear-cut.

Some people report feeling sleepy after consuming collagen, but the scientific evidence supporting this is scant. It’s worth noting that collagen contains glycine, an amino acid that has been linked to improved sleep quality in some studies. Glycine is known to lower body temperature, a factor that can induce sleepiness. It’s possible that this is why some people feel sleepy after taking collagen.

However, it’s also possible that the drowsiness some people experience is a placebo effect or due to other factors. For example, some collagen supplements contain additional ingredients like magnesium, which is known to promote sleep. Other factors like the time of day when the supplement is taken, individual metabolism, or even diet can also play a role in how one feels after consuming collagen.

The Right Way to Take Collagen for Optimal Sleep Benefits

Even though there’s limited research on collagen’s direct impact on sleep, it’s important that I understand the proper way to take it for optimal sleep benefits. Collagen, a key protein in our bodies, has been touted for its potential sleep-enhancing benefits. Yet, the scientific evidence so far is mixed, and a lot of the information out there is based on anecdotal evidence rather than hard science.

From what’s available in the scientific literature, it appears that the timing of collagen intake could be crucial. Some studies suggest taking collagen before bed could potentially enhance sleep quality due to its glycine content, an amino acid that might have sedative effects. However, it’s important to note that these studies are often small and not always well-controlled.

Additionally, the form of collagen taken could also play a role. For instance, hydrolyzed collagen, which is broken down into smaller peptides, is generally easier for the body to absorb. So it might be more effective at delivering potential sleep benefits.

Moreover, the dose of collagen might also matter. Most studies use doses of around 10g per day, but it’s unclear if more or less would have different effects. And of course, individual differences such as age, health status, and diet could also impact how much collagen one might need for potential sleep benefits.


In conclusion, while collagen isn’t a guaranteed ticket to dreamland, evidence suggests it could help enhance sleep quality. Its amino acid content, particularly glycine, may promote better sleep patterns. Still, individual responses vary. So, if you’re struggling with sleep, it may be worth giving collagen a try. But remember, it’s crucial to consume it correctly for optimal sleep benefits. As always, consult a healthcare professional before starting any new supplement regimen.

Make sure to read more about collagen on our website, for example “does collagen make you break out?

This post is written and managed by Hannah West

Hannah West

Hello there, lovely readers! I’m Hannah West, and I’ve had the incredible journey of serving as a Skin Health Researcher for over a decade. My passion for skincare started early, and I’ve dedicated my life to research healthy, glowing skin. Through my years of reading about it, I’ve witnessed the transformative power of proper skincare routines. From addressing common concerns to tackling complex issues, I’m here to share my knowledge and experiences with all of you so you don’t have to research it yourself.

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