5 Ways Collagen Can Help Soothe the Gut

By Nikki Lyn Pugh

Reading Time: 7 minutes

This article discusses emerging/ongoing science and research. It is intended for general informational purposes only. This content is unrelated to products offered by Organixx and does not contain any representations about the performance of such products.

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“The use of a 20 g daily collagen peptide supplement may reduce bloating and improve mild digestive symptoms in otherwise healthy female adults in the absence of any other dietary or lifestyle interventions.” —Effect of a Daily Collagen Peptide Supplement on Digestive Symptoms in Healthy Women

Research into how gut health affects all other aspects of our body’s health is one of the fastest-growing areas of medical research. The fact that bone broth can help the condition known as Leaky Gut is becoming part of medical wisdom for many forward-thinking doctors. For a long time, however, no one knew why it worked so well. Now research is confirming that collagen is the key. Collagen is an essential building block of all tissue creation – including within your digestive tract.

Why Does Collagen Work for Gut Health?

Collagen for a healthy gut quote from Flushing Hospital Medical Center.

Image Source: Benefits of Collagen for Maintaining a Healthy Gut

Collagen is a kind of protein, which means that it is made up of amino acids, namely glycine and proline, as well as a few others [1]. There is also not just one kind of collagen. In fact, there are over two dozen types of collagen, although roughly 85% of the collagen in the body is made up of Type I, II, or III (or a combination of these three types).

Collagen is unique in the way that it “packs” itself into the body to create tissue. The abundant Type I Collagen is so strong in fact that some experts claim that it is “hard as steel.” Collagen forms strong yet pliable matrices within the body through something called “fibrils.” You can think of collagen as the “stuff that makes up stuff” that holds your body together. This means cartilage, muscle tissues and skin, and also bone, teeth, parts of the eyes, and organ tissue.

As stated before, Type I Collagen is the most prevalent type of collagen found in the body. It is also found in the digestive tract, along with Type III collagen. Foods and supplements that contain Type I and Type III collagen are excellent sources for improving gut health, as we shall see below.

The Evidence: How Collagen Helps Your Digestive Tract

man with acid reflux gripping stomachBesides simply improving gut health in general, research has indicated that collagen may provide relief for specific gut-related problems. Here are just a few of the studies and their key findings:

#1 – Collagen Helps Balance Stomach Acid.

Collagen for stomach acid or GERD quote.

Image Source: A Review of the Effects of Collagen Treatment in Clinical Studies

Did you know that we have an epidemic of low stomach acid, also called  Hypochlorhydria, in the world today?

This is an issue that is talked about very little but can have vast consequences for your health. Stomach acid imbalance is linked to autoimmune disorders, hypothyroidism, the use of antacids and proton pump inhibitors, bad bacterial overgrowth (like H. Pylori), traditional cancer treatments including radiation therapy, gastric bypass surgery, vitamin and mineral deficiencies, stress… and the list goes on [2].

The issues above are relevant to just about everyone on the planet right now! Stomach acid helps your food to break down nutrients from the food you consume to be distributed where they need to go. You do the math: since most everyone has some kind of imbalance that can lead to low stomach acid, just about everyone has nutrient absorption issues as well.

Fortunately, specific lifestyle changes, as well as targeted supplementation, have been shown to help restore just the right amount of stomach acid to your system.

Collagen supplementation can play a key part in this. A study published in the American Journal of Physiology [3] found that the amino acid glycine found in large abundance in collagen helped to boost gastric juices. A German study conducted in 2017 generated similar findings [4].

#2 – Collagen Helps Hydrate the Digestive Tract.

The gut needs water to help move things along, which is one good reasonmature woman sitting on bed drinking a glass of water why drinking water throughout the day is so important [5].

Healthy collagen is considered a “hydrophilic” molecule, mainly because of its unique relationship with sugar molecules in a process called collagen glycation [6]. The collagen-sugar matrix is attracted to water as well as acidic substances.

When foods with collagen in them or collagen in supplement form are ingested, water begins to surround it, and this water (as well as stomach acid) can pass through the GI tract easier. This whole process helps with the breakdown of carbohydrates and other proteins and, thus, leads to better nutrient absorption and better health.

#3 – Collagen Helps to Repair the Stomach and Intestines.

Type I and III collagen are raw materials for almost all the connective tissue in the digestive system. Thus, the theory goes, by adding more collagen to the mix, you can repair the stomach and intestines and avoid complications like Leaky Gut (see below).

A 2004 study [7] conducted by the Medical Academy of Białystok in Poland found that one of the major characteristics in people with stomach cancer is defects in collagen metabolism. This makes sense since collagen also plays a vital part in gene expression, enzyme activity, and regulation of cellular growth.

#4 – Collagen Helps with Irritable Bowel Syndrome (IBS) and Stomach Ulcers.

Collagen for digestive health quote from Gundersen Health System.

Image Source: What is the benefit of collagen in your diet?

With all the functions collagen helps within the digestive system and the body as a whole, it is no wonder that studies have indicated collagen supplementation can help with both Irritable Bowel Syndrome and stomach ulcers.

A 2003 study published in the Journal of Clinical Pathology found that individuals with IBS were more likely to have lower serum collagen levels than those who did not have IBS, especially collagen type IV [8]. In addition, a 2000 Nebraska Medical Center study found that the collagen in plain old chicken soup helped to reduce inflammation in the body as a whole, including in the gut. They traced this effect to its ability to turn off pro-inflammatory mechanisms within immune system cells [9].

Finally, a more recent Brazilian study published in the Journal of Medicinal Food found that a combination of whey protein and collagen supplementation helped to protect against ethanol-induced ulcerative lesions in the gut [10].

Ethanol [11] is produced as part of a fermentation process that may occur when food particles, especially sugars, stagnate in the gut and begin to “outgas.” These gases can be dangerous for brain health as well since they can pass through the blood-brain barrier and have a neurotoxic effect.

close-up of villi in the intestines

#5 – Collagen Helps with Leaky Gut.

Finally, there is the help that collagen may be able to provide for the millions of individuals who suffer from Leaky Gut.

Leaky Gut is also called intestinal permeability and occurs when tiny holes form in the digestive tract. This allows foreign matter to enter into the bloodstream where the immune system sees them as “invaders” and launches attacks, or autoimmune reactions, to them. The vicious cycle leads to chronic confusion for the immune system, and in many cases, to autoimmune diseases.

It is now known that roughly 80% of our immune system cells reside in the gut. The millions of tiny microscopic folds in the intestinal walls called “villi” are actually made of collagen. For this reason, collagen is thought to help “seal” the gut, allowing food particles to stay inside the intestines where they belong.

Much more research is definitely needed to find out how collagen can help with conditions like Leaky Gut and IBS as well as help digestive health as a whole. In the meantime, the growing body of research that is out there now paints a promising picture of the power of quality collagen supplements to provide relief to the millions of Americans who suffer from GI distress.

Organixx Clean Sourced Collagens blend contains five types of collagen from four sources. What’s more, it’s combined with targeted nutrients such as zinc, vitamin C, and vitamin B6 which specifically enhance the bioavailability and potency of collagen. Clean Sourced Collagens is formulated from the ground up to enhance and support your body’s natural ability to heal and rebuild itself from the INSIDE out.

Organixx Clean Sourced Collagens
Nikki Lyn Pugh
Nikki Lyn Pugh, MFA, INHC is a natural health researcher and writer. She is also an integrative nutritional health coach specializing in autoimmune conditions, chronic stress, and energy medicine. She loves to inspire people to become empowered with their health through education and gentle guidance. Nikki lives and works in Cottonwood, AZ, with her bunny "Mr. Dot."

Article Summary

  • Collagen is a kind of protein, which means that it is made up of amino acids, namely glycine and proline.

  • Type I Collagen is the most prevalent type of collagen found in the body. It is also found in the digestive tract, along with Type III collagen.

  • Type I and Type III collagen are excellent sources for improving gut health.

  • Research has indicated that collagen may provide relief for specific gut-related problems such as:

    • Balancing stomach acid
    • Hydrating the digestive tract
    • Repairing damage to the stomach and intestines
    • Aiding Irritable Bowel Syndrome (IBS) and stomach ulcers
    • Helping to heal leaky gut (intestinal permeability)
  • Check out our Clean Sourced Collagens.


    • Thank you very much for the kind words, Nora! We are happy to hear about your wonderful feedback. We are also very excited for you to try our Clean Sourced Collagen, let us know how you liked it!

  1. Thank you for sharing how it help in many ways especially gut health. I feel some funny sensation of legs after taking and my foot with bunion a bit of pain. Hope it's healing process. Energy wise, it's good.

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