Does Collagen Count Towards Protein Intake? The Real Answer

Does Collagen Count Towards Protein Intake? The Real Answer

11/04/2025 By BUBS Naturals

Table of Contents

  1. Introduction
  2. Understanding Protein and Amino Acids
  3. The PDCAAS Score and Labeling Rules
  4. The 36% Rule: How Much Can You Count?
  5. Collagen vs. Whey: Different Tools for Different Jobs
  6. Why Glycine Matters More Than You Think
  7. How to Successfully "Complete" Your Collagen Protein
  8. Practical Ways to Use Collagen in Your Daily Routine
  9. The BUBS Naturals Difference
  10. Summary: Does It Count?
  11. Conclusion
  12. FAQ

Introduction

You are looking at your macro tracker after a morning workout. You just stirred a scoop of collagen into your coffee, adding about 18 to 20 grams of protein to your daily tally. Then, you remember something you read online: "Collagen isn't a complete protein, so it doesn't count." This leaves you wondering if you are actually hitting your goals or just chasing numbers that don't matter.

At BUBS Naturals, we believe in providing the no-BS truth about what you put into your body, and a daily habit like BUBS Naturals Collagen Peptides fits that mindset. Whether you are a veteran hitting the rucking trails, an athlete in the gym, or someone just trying to stay mobile and healthy, you deserve to know how your supplements actually work. The question of whether collagen counts towards your protein intake is one of the most common debates in the wellness world.

The answer is more nuanced than a simple yes or no. While collagen lacks one specific essential amino acid, it provides massive amounts of others that you won't find in a standard chicken breast or whey shake. This article will break down the science of amino acids, explain why the "complete protein" label is often misunderstood, and show you exactly how to count collagen in your daily routine.

Quick Answer: Yes, collagen counts toward your total daily protein intake. While it is an incomplete protein because it lacks the essential amino acid tryptophan, research suggests it can make up about 30–36% of your daily protein without compromising your nutritional needs.

Understanding Protein and Amino Acids

To understand why people debate collagen, we first have to look at what protein actually is. Protein is not just a single "thing." It is a structure built from amino acids. Think of amino acids as individual bricks. Your body uses 20 different bricks to build everything from muscle fibers to enzymes and skin cells.

Out of those 20 amino acids, nine are considered "essential." This means your body cannot make them on its own. You must get them from your food. If a protein source contains all nine of these essential amino acids in sufficient amounts, it is labeled a "complete protein." Common examples include meat, eggs, dairy, and soy.

Collagen is a structural protein. It is the most abundant protein in your body, acting as the "glue" or scaffolding for your skin, joints, bones, and connective tissues. However, in terms of its amino acid profile, it is "incomplete." It contains eight of the nine essential amino acids but is missing tryptophan.

The Role of Non-Essential Amino Acids

Just because an amino acid is labeled "non-essential" doesn't mean it is unimportant. It simply means your body has the machinery to produce it from other materials. However, "conditionally essential" amino acids are a different story. These are amino acids that your body might struggle to produce enough of during times of high stress, intense training, or injury recovery.

Collagen is packed with these. It is incredibly high in glycine, proline, and hydroxyproline. You won't find these in high concentrations in muscle meats or whey protein. These specific building blocks are what make collagen unique and why it may support joint health and skin elasticity in ways that other proteins cannot.

Key Takeaway: Collagen is an incomplete protein because it lacks tryptophan, but it provides a concentrated source of functional amino acids like glycine and proline that are vital for structural health and often lacking in modern diets.

The PDCAAS Score and Labeling Rules

If you look at a nutrition label for collagen, you might notice something strange. It might say "20g Protein" on the front, but the Percent Daily Value (% DV) column on the back is often blank or has an asterisk. This is due to a regulatory metric called the PDCAAS.

PDCAAS stands for Protein Digestibility Corrected Amino Acid Score. This is a scientific method used to evaluate the quality of a protein based on both the amino acid requirements of humans and their ability to digest it. The scores range from 0.0 to 1.0.

Because collagen is missing tryptophan, its PDCAAS score is technically 0.0. This is the main reason skeptics say it "doesn't count." According to the FDA, if a protein has a score of zero, it cannot contribute to the percent daily value on a label. This rule is designed to prevent companies from selling "protein" that could lead to malnutrition if it were someone’s only source of food.

However, your body does not read a nutrition label. It sees the amino acids. When you consume hydrolyzed collagen (Collagen Peptides), your body breaks it down into its constituent amino acids and uses them where they are needed most.

Myth: Collagen is a "waste" of protein because its PDCAAS score is zero. Fact: While it cannot be your only source of protein, the amino acids in collagen are highly bioavailable and used by the body to repair connective tissue, skin, and bones.

The 36% Rule: How Much Can You Count?

A landmark study published in the journal Nutrients in 2019 addressed this exact question. Researchers wanted to know how much collagen a person could consume before the lack of tryptophan became a problem for their overall amino acid balance.

The study found that for a person consuming the Recommended Dietary Allowance (RDA) of protein, collagen can make up about 30% to 36% of their total daily protein intake while still meeting all essential amino acid requirements. This is significant because it proves that collagen can and should be counted as part of a balanced diet.

If you are an active individual eating more than the RDA—which is often the case for our community—the "buffer" is even larger. If you are eating 150 grams of protein a day and 20 of those grams come from collagen, you are well within the safe and effective range. You aren't "missing" anything because the other 130 grams of protein from meat, eggs, or whey provide more than enough tryptophan to fill the gap.

Bottom line: You can confidently count your collagen toward your daily protein goal as long as it doesn't exceed roughly one-third of your total intake.

Collagen vs. Whey: Different Tools for Different Jobs

When people ask if collagen counts as protein, they are often comparing it to whey. It is important to remember that these two supplements serve different purposes. They aren't competitors; they are teammates.

Whey protein is a "complete" protein and is exceptionally high in leucine. Leucine is a branched-chain amino acid (BCAA) that acts as a primary signal for muscle protein synthesis—the process where your body repairs and grows muscle tissue. If your goal is maximum muscle hypertrophy (growth), whey or animal proteins are your best bet.

Collagen, on the other hand, is built for the "white tissues" of the body—tendons, ligaments, and cartilage. These tissues have a very slow blood supply and don't respond to leucine the same way muscles do. Instead, they require the high concentrations of glycine and proline found in collagen to stay strong and resilient.

If you only take whey, you are feeding your muscles but potentially neglecting your joints. If you only take collagen, you are supporting your joints but missing the signals for muscle growth. For the best results, many of us at BUBS Naturals use both.

Bioavailability: Hydrolyzed Collagen

We use hydrolyzed collagen in our formulas because bioavailability—the amount of a nutrient that actually enters your bloodstream—is everything. Regular collagen is a very large, tough molecule that is hard for the body to break down. Think of it like a thick rope.

Hydrolyzed collagen has undergone a process where enzymes break those "ropes" into tiny "threads" called peptides. These peptides are much easier for your gut to absorb, meaning they get to your tissues faster and more effectively. When you see "Collagen Peptides" on our label, it means the work of breaking it down is already done for you.

Why Glycine Matters More Than You Think

One of the biggest reasons to count collagen as a vital part of your protein intake is its glycine content. Glycine makes up about one-third of the amino acids in collagen. While your body can make some glycine, most modern diets are chronically low in it because we no longer eat "nose-to-tail" (consuming skin, cartilage, and connective tissues of animals).

Glycine is more than just a structural building block. It plays a role in:

  1. Glutathione Production: Glycine is a key component of glutathione, the body's master antioxidant. This helps protect your cells from oxidative stress and supports your immune system.
  2. Creatine Synthesis: Your body uses glycine, along with arginine and methionine, to produce Creatine Monohydrate.
  3. Metabolic Health: Some research suggests that glycine may help support healthy blood sugar levels and improve sleep quality by lowering core body temperature.

When you count collagen in your protein intake, you aren't just counting "filler." You are counting a functional nutrient that supports your metabolism and longevity.

How to Successfully "Complete" Your Collagen Protein

If you are worried about the missing tryptophan in collagen, the solution is simple: eat a varied diet. Tryptophan is widely available in many common foods. By eating these throughout the day, you "complete" the amino acid profile of your collagen supplement automatically.

Foods high in tryptophan include:

  • Poultry: Turkey and chicken are famous for their tryptophan content.
  • Eggs: A complete protein powerhouse that pairs perfectly with a collagen-boosted breakfast.
  • Seeds and Nuts: Pumpkin seeds, chia seeds, and walnuts are great plant-based sources.
  • Oats: A bowl of oatmeal with a scoop of collagen is a nutritionally complete way to start the morning.
  • Dairy: Greek yogurt or cottage cheese provides ample tryptophan.

You don't need to eat these at the exact same time you take your collagen. Your body maintains an "amino acid pool" in the blood and tissues, drawing what it needs as it needs it. As long as you consume these foods within the same 24-hour window, your body has the tools to utilize the protein effectively.

Practical Ways to Use Collagen in Your Daily Routine

Meeting your protein goals shouldn't feel like a chore. The beauty of collagen peptides is their versatility. Unlike whey, which can be clumpy or have a strong milky flavor, high-quality collagen peptides are virtually tasteless and dissolve in almost anything.

The Morning Kickstart

Many of us start the day with a scoop of Collagen Peptides in our coffee. Because it is heat-stable, it won't lose its nutritional value in a hot brew. It adds a creamy texture without changing the flavor of your favorite roast.

The Recovery Stack

If you are finishing a hard training session, you can mix collagen with your electrolytes. Our "Hydrate or Die" electrolyte powder provides the minerals your muscles need to function, while the collagen provides the amino acids your joints need to recover. Adding a scoop of collagen to a post-workout shake that also contains whey or a complete plant protein is the ultimate way to cover all your bases.

Better Digestion

Because collagen is already hydrolyzed, many people find it much easier on the stomach than other protein powders. If you experience bloating or gas from dairy-based proteins, collagen can be a great way to hit your protein targets without the digestive distress. It also contains glutamine, an amino acid that may help support the health of your gut lining.

Note: If you are using collagen to support your joints, try taking it about 30–60 minutes before your workout. Some research suggests that having those amino acids in your system while you are putting tension on your joints can help "drive" the nutrients into the cartilage.

The BUBS Naturals Difference

Not all collagen is created equal. If you are going to count these grams toward your daily goals, you want to ensure those grams are coming from a clean, high-quality source.

We source our Collagen Peptides from grass-fed, pasture-raised bovine hides. This ensures a clean amino acid profile without the junk found in lower-quality, grain-fed alternatives. More importantly, we believe in transparency. Our collagen is third-party tested and NSF for Sport certified. This is the gold standard for athletes and military personnel because it guarantees that what is on the label is exactly what is in the tub—and nothing else. No fillers, no banned substances, no BS.

Our products are designed to mix effortlessly into your life. We know you’re busy, and we know you’re active. You need supplements that work as hard as you do. When you see our name, you know you’re getting a product built on a legacy of excellence and purpose.

Summary: Does It Count?

The verdict is clear: Collagen definitely counts toward your protein intake. While it isn't a one-for-one replacement for a steak or a complete protein powder, it is a vital part of a functional nutrition plan.

To get the most out of it:

  • Count it as part of your total daily protein grams.
  • Keep it to around 30% or less of your total protein intake.
  • Eat a variety of whole foods to ensure you get enough tryptophan.
  • Use it specifically to support your joints, skin, and gut health.

Conclusion

At the end of the day, wellness is about more than just hitting a number on a screen. It’s about how you feel during your morning run, how quickly you bounce back after a heavy lift, and how your body holds up over the years. Collagen is a specialized tool that helps you stay in the game longer by supporting the structural integrity of your body.

We are proud to offer products that help you live a better, more active life. But we are also proud of why we do it. BUBS Naturals was founded to honor the legacy of Glen "BUB" Doherty—a story you can read more about in our story.

When you choose us, you aren't just fueling your body; you are supporting a mission. So go ahead, stir that scoop into your coffee, count those grams, and get out there. You’ve got work to do.

Key Takeaways:

  • Total Intake: Collagen contributes to your total protein grams for the day.
  • The Mix: Aim for a diet where collagen makes up no more than a third of your protein.
  • Complementary: Pair collagen with tryptophan-rich foods like eggs or turkey to complete the profile.
  • Specific Benefits: Use collagen for joint, skin, and gut health, while using complete proteins for muscle building.

Ready to level up your routine? Try adding our Collagen Peptides to your daily habit and feel the difference that clean, high-quality nutrition can make. For more reading, visit the BUBS Blog.

FAQ

1. Can I use collagen as my only source of protein?

No, it is not recommended to use collagen as your only protein source. Because it lacks the essential amino acid tryptophan, relying on it exclusively could lead to a nutritional deficiency. For optimal health and muscle maintenance, Collagen Peptides should be used as a supplement alongside complete protein sources like meat, fish, eggs, or dairy.

2. Does collagen help with muscle growth?

While collagen contains amino acids, it is not the most effective supplement for muscle hypertrophy. It is very low in leucine, the primary amino acid that triggers muscle building. It is much better suited for repairing connective tissues like tendons and ligaments, while Creatine Monohydrate or animal proteins are superior for building muscle fiber.

3. How do I track collagen in my macros?

You can track Collagen Peptides just like any other protein. If your scoop provides 18 grams of protein, enter 18 grams of protein into your tracker. As long as you are eating a balanced diet with other protein sources throughout the day, the fact that it is "incomplete" won't negatively impact your results.

4. Is it better to take collagen in the morning or at night?

The timing of collagen is less important than consistency. Many people find it easiest to remember in the morning by mixing it into their coffee. However, some athletes prefer taking it 30–60 minutes before a workout to support joint health during exercise, while others take it at night because the amino acid glycine may help support better sleep quality.

*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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