Does Collagen Powder Make You Tired?

Does Collagen Powder Make You Tired?

07/08/2025 By Bubs Naturals

Table of Contents

  1. Introduction
  2. The Science of Collagen and Energy
  3. The Glycine Factor: Why You Might Feel Relaxed
  4. The Tryptophan Theory: A Common Misconception
  5. Better Sleep vs. Daytime Fatigue
  6. Digestive Load and Energy Levels
  7. Why Quality and Purity Matter
  8. Holistic Causes of Fatigue
  9. How to Optimize Your Collagen Routine
  10. Conclusion
  11. FAQ

Introduction

You’ve likely heard the praise for collagen. From supporting joint mobility to helping your skin maintain its elasticity, it is often called the "scaffolding" of the body. Most people add a scoop to their morning coffee or post-workout shake and go about their day feeling fueled and ready. But recently, a few people have asked a surprising question: does collagen powder make you tired?

It seems counterintuitive. After all, collagen is a protein, and protein is generally associated with sustained energy and muscle repair. However, the way our bodies process different amino acids is complex. At BUBS Naturals, we believe in total transparency and helping you understand exactly how your supplements interact with your biology.

In this guide, we will break down the science behind collagen and energy levels. We will look at the specific amino acids involved, the relationship between collagen and sleep quality, and why any perceived "tiredness" might actually be a sign of a better night’s rest. Our goal is to help you navigate your wellness journey with clarity and confidence.

QUICK ANSWER BOX

Quick Answer: Collagen powder does not typically cause daytime fatigue or drowsiness. In fact, it contains high amounts of the amino acid glycine, which may improve sleep quality and help you feel more refreshed during the day.

The Science of Collagen and Energy

To understand if collagen affects your energy, you have to look at what it is made of. Collagen is a protein, but it isn’t like the protein found in a steak or a whey shake. It is composed of a specific profile of amino acids—the building blocks of protein.

The primary amino acids in collagen are glycine, proline, and hydroxyproline. These are considered "non-essential" or "conditionally essential," meaning your body can produce them, but often not in the quantities needed for optimal performance. When you take a supplement like hydrolyzed collagen peptides, you are providing your body with a concentrated dose of these specific building blocks.

Hydrolyzed collagen, also known as collagen peptides, has been broken down into smaller, easily digestible chains. This process makes the protein highly bioavailable, meaning your body can absorb and use it quickly. Because it digests easily, it rarely causes the "food coma" or heavy, sluggish feeling that can follow a massive, high-protein meal.

The Glycine Factor: Why You Might Feel Relaxed

The most likely reason someone might associate collagen with a feeling of "tiredness" is its high glycine content. Glycine is a powerful amino acid that wears many hats in the human body. While it helps build muscle and repair connective tissue, it also functions as an inhibitory neurotransmitter in the brain.

Research suggests that glycine can have a calming effect on the central nervous system. It helps lower your core body temperature, which is a natural physiological signal to your brain that it is time to sleep. When your core temperature drops, your body prepares for rest. This is why many people find that taking collagen in the evening helps them drift off more easily.

However, this is not the same as a sedative. Glycine does not "knock you out" or cause the grogginess associated with sleep medications. Instead, it supports the body’s natural rhythms. If you take collagen in the morning and feel slightly more relaxed, it is likely the glycine helping to manage your stress response rather than causing actual fatigue.

Key Takeaway: Collagen is rich in glycine, an amino acid that may support a lower core body temperature and a calmer nervous system. This helps improve sleep quality at night rather than causing true drowsiness during the day.

The Tryptophan Theory: A Common Misconception

There is a theory circulating in some wellness circles that collagen can make you tired by messing with your "happy hormones." This theory centers on an amino acid called tryptophan.

Tryptophan is the precursor to serotonin, which eventually converts to melatonin—the hormone that regulates sleep. Collagen is one of the few protein sources that is naturally "incomplete," meaning it contains almost no tryptophan. The theory suggests that if you consume massive amounts of collagen without other protein sources, you might lower your brain's tryptophan levels, leading to a drop in serotonin and a potential feeling of fatigue or low mood.

In reality, this is highly unlikely for anyone eating a balanced diet. If you eat poultry, eggs, beef, fish, or beans at other times during the day, you are getting plenty of tryptophan. Your body maintains an amino acid pool that it draws from throughout the day. Taking a scoop or two of collagen will not cause a systemic deficiency that results in exhaustion.

Myth: Taking collagen powder leads to a tryptophan deficiency that causes chronic fatigue. Fact: While collagen lacks tryptophan, a standard diet provides more than enough of this amino acid to prevent any energy or mood disruptions.

Better Sleep vs. Daytime Fatigue

It is important to distinguish between feeling "tired" and experiencing improved sleep quality. Many athletes and active adults report better recovery after starting a collagen regimen. This is again thanks to glycine.

Studies have shown that glycine can improve the quality of REM (Rapid Eye Movement) sleep and decrease the time it takes to fall asleep. If your body is using the amino acids in collagen to repair itself more efficiently overnight, you may actually find yourself with more energy during the day.

If you find that you feel a bit too relaxed after a morning dose, try shifting your collagen intake to the evening. Mixing our Collagen Peptides into a warm cup of herbal tea or a evening recovery shake can be an excellent way to wind down. By aligning the supplement with your body’s natural wind-down phase, you turn a potential "side effect" into a performance advantage.

Digestive Load and Energy Levels

Sometimes, what we perceive as fatigue is actually our digestive system working overtime. Even though hydrolyzed collagen is designed for easy absorption, everyone’s gut is different. If you take a large dose of any protein on an empty stomach, or if your digestive system is already stressed, you might feel a temporary dip in energy as your body redirects resources to digestion.

This is rarely a direct result of the collagen itself and more about how it fits into your overall nutrition. If you’re feeling sluggish, consider how you are taking your collagen. Are you mixing it with a heavy meal? Are you staying hydrated? Sometimes, simple adjustments to your routine can eliminate that heavy feeling.

At BUBS Naturals, we focus on purity because we know that fillers and "BS" ingredients are often the real culprits behind digestive discomfort and sluggishness. Our collagen is a single-ingredient product—just grass-fed, pasture-raised bovine collagen. No additives, no flavorings, and nothing to slow you down.

Why Quality and Purity Matter

In the world of supplements, not all powders are created equal. If a collagen powder is making you feel "off," it might not be the collagen at all. Many lower-quality brands use fillers, artificial sweeteners, or thickeners that can cause blood sugar spikes or digestive distress.

A blood sugar crash after a hidden sweetener can feel exactly like a wave of fatigue. This is why we are so committed to third-party testing. We ensure our products are NSF for Sport certified, which is the gold standard for purity and safety. When you use a clean product, you eliminate the variables that usually lead to unwanted side effects.

We also believe in the power of "stacking" for energy. If you are worried about collagen making you feel too relaxed in the morning, consider mixing it with our MCT Oil Creamer. MCTs (medium-chain triglycerides) provide a quick source of clean energy for the brain and body. Combining the structural support of collagen with the mental clarity of MCTs creates a balanced morning routine that keeps you sharp and steady.

Holistic Causes of Fatigue

If you are experiencing persistent, unexplained fatigue, it is rarely due to a single supplement like collagen. Energy is a complex result of many factors. If you’re feeling sluggish, it’s worth looking at the bigger picture of your health.

Common culprits for fatigue in active individuals include:

  • Hydrate or Die: Even mild dehydration can lead to brain fog and physical tiredness.
  • Nutrient Deficiencies: Low levels of iron (anemia) or Vitamin D can significantly impact energy.
  • Overtraining: If you are pushing your body hard without enough recovery time, fatigue will eventually set in.
  • Poor Sleep Hygiene: If you aren't getting 7-9 hours of quality rest, no supplement can fix the resulting exhaustion.

If you’ve adjusted your collagen timing and quality but still feel tired, we recommend consulting with a healthcare professional. They can run blood work to check your thyroid function and nutrient levels to ensure there isn’t an underlying medical cause for your fatigue.

How to Optimize Your Collagen Routine

To get the most out of your collagen without any worry of daytime sluggishness, follow these simple guidelines:

  1. Check the Source: Ensure you are using a clean, single-ingredient hydrolyzed collagen like ours. Avoid brands with "proprietary blends" or long lists of artificial ingredients.
  2. Adjust the Timing: If you are sensitive to the calming effects of glycine, move your collagen intake to dinner or right before bed.
  3. Start Small: If you are new to collagen, start with a half scoop (about 5-10 grams) and see how your body reacts before moving up to a full 20-gram serving.
  4. Pair Wisely: In the morning, mix your collagen with a healthy fat or a clean caffeine source to balance the amino acid profile and provide a steady energy boost.
  5. Stay Consistent: Most of the benefits of collagen—for joints, skin, and sleep—come from daily, long-term use rather than a one-off dose.

Bottom line: Collagen is a safe, effective supplement that is more likely to improve your sleep quality than to make you feel tired during the day, provided you use a high-quality product and maintain a balanced diet.

Conclusion

The idea that collagen powder makes you tired is largely a misunderstanding of how the amino acid glycine works. Rather than causing fatigue, collagen helps create the conditions for better recovery and deeper rest. By supporting your body’s structural integrity and its natural sleep-wake cycles, it helps you perform at your best when it counts.

At BUBS Naturals, our mission is rooted in the legacy of Glen "BUB" Doherty—a man who lived a life of high-performance adventure and purpose. We make products that support that kind of lifestyle. Whether you’re hitting the trails, the gym, or the office, we want to provide the clean fuel you need to keep moving forward.

We are also committed to giving back. In BUB’s honor, we donate 10% of all our profits to veteran-focused charities. When you choose us, you’re not just supporting your own wellness; you’re supporting a larger mission of service and sacrifice.

Experience the difference of clean, effective nutrition. Try our Collagen Peptides as part of your nightly routine for better recovery, or pair them with our MCT Oil Creamer for a balanced morning start. Listen to your body, find your rhythm, and live your life with purpose.

FAQ

Does collagen cause daytime drowsiness?

For the vast majority of people, collagen does not cause daytime drowsiness. While it contains glycine, which has a calming effect, this typically results in reduced stress or better sleep quality at night rather than making you feel sleepy during the day.

Can I take collagen in the morning?

Yes, taking collagen in the morning is perfectly fine and is a preferred routine for many. If you find it makes you feel too relaxed, you can always switch to evening use or mix it with a morning energy source like our MCT Oil Creamer.

Why do I feel sluggish after taking collagen?

If you feel sluggish, it may be due to the digestive effort required for a large dose of protein, or it could be a reaction to fillers and artificial ingredients in lower-quality brands. Using a clean, hydrolyzed formula like ours can help minimize any heavy feelings.

Does collagen help you sleep?

Many people find that collagen supports better sleep because it is rich in glycine. Glycine helps lower core body temperature and promotes the production of serotonin, both of which are essential for falling asleep and staying in a deep, restorative state.

*Disclaimer:

These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease. Product results may vary from person to person.

Information provided on this site is solely for informational purposes only. It is not a substitute for professional medical advice. Do not use this information for diagnosing or treating a health problem or disease, or prescribing of any medications or supplements. Only your healthcare provider should diagnose your healthcare problems and prescribe treatment. None of our statements or information, including health claims, articles, advertising or product information have been evaluated or approved by the United States Food and Drug Administration (FDA). The products or ingredients referred to on this site are not intended to diagnose, treat, cure or prevent any disease. Please consult your healthcare provider before starting any supplement, diet or exercise program, before taking any medications or receiving treatment, particularly if you are currently under medical care. Make sure you carefully read all product labeling and packaging prior to use. If you have or suspect you may have a health problem, do not take any supplements without first consulting and obtaining the approval of your healthcare provider.

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