Prebiotics, Probiotics, and Postbiotics: Why You Need The Trifecta of Good Gut Health background image
May 14, 2024

Prebiotics, Probiotics, and Postbiotics: Why You Need The Trifecta of Good Gut Health

Dr. Thomas Wnorowski profile image

Dr. Thomas Wnorowski

PhD, CNCC, Clinical Nutrition Researcher & Biomedical Nutritionist

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Key Takeaways:

Key Points:

  • You need three main “biotics” for good gut health: prebiotics, probiotics, and postbiotics.
  • Probiotic supplements can be difficult to get right for your individual microbiome, and they often simply do not work for those with specific and significant gut issues. They may even contribute to worse dysbiosis in some cases.
  • With that in mind, we recommend consuming fermented foods for your probiotics (to tolerance) and nurturing your total gut ecosystem with pre- and postbiotics, such as butyrate.

It’s no secret that the health world has been obsessed with probiotics for over the last decade now. So much research and investment has gone into developing and testing different strains, seeing how they change our microbiome and influence the all-important gut ecosystem.

Prebiotics are the next most popular, as we’ve learned that certain foods and compounds support probiotics to do their jobs for us. And what are those jobs? Probiotics make postbiotics, the newest “biotic” on the block. As it turns out, postbiotics might be the most revolutionary of them all for our health and wellbeing.

Here’s an in-depth look at prebiotics, probiotics, and postbiotics — three P’s in a fermented pod.

Table of Contents:

Prebiotics vs. Probiotics vs. Postbiotics

Prebiotic, probiotic, and postbiotic: Now that’s a lot of biotics. And we’re not even going into synbiotics and psychobiotics! 

The first thing to know about these three main biotics is that they work in a continuum: prebiotics feed probiotics, which create postbiotics. And only one of these, probiotics, are living organisms. The prebiotics and postbiotics are the nutrient imports and exports that feed and are produced by probiotics. Still with us? Let’s dig into each of these equally important biotics separately.

What Are Prebiotics? 

Prebiotics are the fuel for the probiotics and mostly take the form of certain whole foods we eat, but we can also synthesize certain prebiotic compounds and add them to supplements or processed foods. The whole-food prebiotic sources are usually plant foods high in fiber, which probiotics love to feast on. 

What are Probiotics? 

The word “probiotic” comes from Greek, meaning literally “for life.” That alone gives you an idea of how important probiotics are for our health. 

In expanded terms, a probiotic is a beneficial microscopic organism, usually bacteria but also some species of fungi, that live within or on our bodies and confer a health benefit to us, its host. Basically, we give the probiotics a place to live, and they give us nutrients and maintain their environment, whether that’s our skin, gut, sinuses, etc. It’s a win-win for both of us. 

What Are Postbiotics?

Postbiotics are what probiotics make when they consume prebiotics. While research is still developing around this brand-new subject, postbiotics are generally classified as beneficial substances to both the host and the microbes that produce them. So we definitely want to keep postbiotics around and encourage our probiotics to make more of them.

So far, the most popular postbiotic for its health-promoting effects is butyrate. Butyrate is a short-chain fatty acid (SCFA) that has been shown to have a range of benefits such as immunomodulatory and protective effects on the gut lining.* It may also help to maintain normal inflammation levels.*

You can check out our full blog on Butyrate here.

Why You Need Pre, Pro, and Postbiotics for Better Health

Okay, now that we have the basics down, let’s review why you need pre, pro, and postbiotics for outstanding health — and how you can get them. 

Examples of Prebiotics

As we mentioned above, prebiotics are mostly plant foods high in fiber. The fiber content means that we can’t actually digest these foods, but the probiotics can. So when you hear that you need to get more fiber into your diet, that’s why. You feed your probiotics fiber, and they give you postbiotics that benefit your health. Let’s take a look at a few prebiotic foods you can incorporate into your diet regularly.

Prebiotic Foods

Delicious and nutritious prebiotic foods include: 

  • Apples
  • Almonds
  • Artichoke
  • Barley
  • Beets
  • Beans
  • Broccoli
  • Chicory root
  • Dandelion greens
  • Garlic
  • Mushrooms
  • Oats
  • Onions
  • Whole grains

This isn’t an exhaustive list, but you get the idea. Which of these foods are you already eating regularly, and which can you try to add? For even more benefit, try to rotate the foods you eat to get a variety of colors and textures, which will not only keep your meals interesting but also contain different nutrients, like polyphenols and antioxidants. 

Health Benefits of Prebiotics

Along with their high fiber content, prebiotic foods provide a number of different health benefits as they are digested by probiotics in the colon. 

Foods like dandelion greens, artichoke, and garlic have shown antipathogenic effects, helping to protect the GI tract and maintain a healthy microbiome. Almonds contain magnesium and vitamin E and can be a great healthy fat source. When chia seeds absorb liquid, they form a mucus-like consistency that can support peristalsis and gut lining integrity.

Some prebiotics also increase calcium absorption in the body. They can help reduce allergies and inflammation due to their modulation of the microbiome and probiotics. They can also help stabilize blood sugar and regulate hormones. 

How Do You Know If You Need Prebiotics?

If you’re wondering if you need prebiotics, the most common signs your gut is out of sync are constipation, diarrhea, bloating, and excessive gas. But there are other potential signs that point to needing prebiotic support:

  • Digestion Issues: As mentioned, if you experience frequent digestion issues or discomfort, you might need prebiotics to promote the growth of beneficial bacteria and rebalance your gut microbiome, which can alleviate those symptoms.
  • Weakened Immunity: Your gut plays a huge role in supporting your immune system, so if you are sick frequently or it’s difficult to recover from illnesses, it could be a sign of an imbalance in your gut microbiota where prebiotics could help to strengthen it.
  • Sugar Cravings: If you’re constantly craving sugary foods, that might be a sign of an imbalance in your gut, feeding harmful bacteria that thrive on sugar. Since prebiotics feed on fibers and not sugar, they have the potential to reduce sugar cravings.
  • Frequent Antibiotic Use: Multiple rounds of antibiotics disrupt the balance of gut bacteria, harming both harmful and beneficial microbes so a prebiotic can be used to help restore beneficial bacteria.

Types of Probiotics

Types of probiotics commonly include bifidobacteria and lactobacillus, and less commonly lactococcus, streptococcus, and enterococcus. Saccharomyces is a beneficial yeast strain also commonly found in probiotic supplements. 

Common strains you’ll see in probiotic supplements and probiotic-enriched foods include: 

  • L. acidophilus
  • L. casei
  • L. gasseri
  • L. plantarum
  • L. reuteri 
  • L. rhamnosus
  • B. bifidum
  • B. breve
  • B. infantis
  • B. longum
  • Lactococcus lactis
  • Streptococcus thermophilus
  • Saccharomyces cerevisiae (boulardii)

Soil-Based Probiotics 

Soil-based probiotics have been touted as superior to other probiotics due to their survivability through the stomach and small intestine as well as their sourcing from nutrient-rich soil, where we naturally should be getting our probiotics on the food we consume. 

Soil-based probiotics form spores, which are able to resist the harsh acidic environment of your stomach and make it all the way to your colon, where they can actually go to work making those beneficial postbiotics for you.

There’s no definitive answer on whether soil-based probiotics are better or worse for you; the response is individual. One person may respond well to a soil-based probiotic, while another may have GI-related side effects like bloating. 

Probiotic Safety

While probiotics are safe for most, including babies, there are exceptions. People with severe illness or compromised immunity should consult a doctor before taking probiotics due to the potential for unintended consequences. For everyone else, probiotics are a generally safe way to support gut health, but consulting a doctor can help you choose the right strain for your needs.

Suppose you are immunocompromised or already dealing with significant health issues. In that case, you may be better off focusing on eating the prebiotic and probiotic foods that work for you to increase the probiotics in your gut. 

Probiotic Foods

Then there are certain foods we can eat that already contain the beneficial probiotics we need. These are called fermented foods and may include: 

  • Yogurt
  • Kefir
  • Kimchi
  • Sourdough
  • Sauerkraut
  • Kombucha
  • Raw cheese
  • Miso
  • Tempeh

What probiotic foods are in your diet? 

Should You Take a Probiotic Supplement for Gut Health? 

In our opinion, probiotic supplements are often more trouble than they’re worth. 

Most probiotic supplements operate under one of two models:

  1. The “throw every strain at the gut and see what sticks” model (multi-species probiotic)
  2. Or “use this very targeted strain and hope it’s what your individual gut ecosystem needs” model (single species probiotic)

This often leads to a lot of trial and error with different probiotics, and you might end up worse off (more dysbiosis) than where you started. More often than not they simply don’t work — leaving you frustrated, wasting money, and still dealing with whatever gut issues you were trying to fix in the first place. 

Probiotics work best when you know exactly which species/strains your microbiome needs — which is still pretty hard to test for and inaccessible for most people. Even if a certain strain or multiple strains have good research backing them, it’s hard to know whether the intended effects will apply to YOU and your microbiome. 

Instead of appointing yourself the probiotic supplement tester, we suggest finding a few probiotic foods that taste and feel good to you and incorporating them regularly. Only use probiotic supplements when medically necessary, such as during/after a course of antibiotics.

Can You Take Prebiotics and Probiotics Together?

Absolutely! In fact, taking prebiotics and probiotics together can be quite beneficial to the health of your gut and help ease IBS symptoms. Some research has found that combining prebiotics and probiotics (called a synbiotic) may be more effective than taking either one alone. This could be because the prebiotics provide a targeted food source for the specific probiotic strains, enhancing their effectiveness.

To encourage a long-term positive shift in the gut ecosystem (which is more than just your microbiome), we prefer to prioritize prebiotic and postbiotic foods to nurture the commensal bacteria in your gut.

Types of Postbiotics

Now for the new kid on the block: postbiotics. There are several types of postbiotics, including exopolysaccharides (EPS), enzymes, short-chain fatty acids (SCFAs), vitamins, aromatic amino acids, and more. Since the research is still relatively new (and complex), we’ll mostly focus on the category of SCFAs.

Health Benefits of Postbiotics

Short-chain fatty acids, including acetate, propionate, and butyrate, are postbiotics with incredible health benefits. In general, SCFAs have anti-microbial, anti-inflammatory, and anti-tumor effects. They modulate cellular activity and the immune response. They help control glucose stability, appetite, and cardiovascular effects. 

While acetate is the most abundant SCFA in the human body, butyrate has been studied the most due to its presence in the gut as the primary fuel source for the colonocytes, cells in the lining of the colon. Butyrate has been found to enhance intestinal barrier structure and function as well as mucosal immunity, which is great news for anyone with a leaky gut. 

Postbiotic Foods

Just like prebiotics and probiotics, you can get some postbiotics from the foods you eat. There aren’t a lot of foods that contain postbiotics (SCFAs) themselves, but there are many foods that provide the fuel for probiotics to produce postbiotics, especially SCFAs. 

Some postbiotic foods are:

  • Dairy, including butter and cheese (contain postbiotics)
  • Cooked, cooled oats
  • Cooked, cooled rice
  • Cooked, cooled potatoes
  • Legumes
  • Bananas, especially underripe ones
  • Onions
  • Asparagus

All of these foods except for dairy are postbiotic fuel for your microbiome. The grains, potatoes, and legumes contain resistant starch, which ferments in the colon and produces SCFAs. The bananas, onions, and asparagus contain fructo-oligosaccharides, which also fuel butyrate production. 

For more explanation on these butyrate-producing foods, check out our article here. 

Postbiotics Supplements

Finally, you can get postbiotics from high-quality supplements. So far the postbiotic market is focused on butyrate for its gut-protective effects, which we could all use in our high-stress, toxic world.

A butyrate supplement might be helpful for you if:

  • You have IBS or another gut-related illness
  • You struggle with constipation
  • Your digestion is weakened and you can’t digest fiber well 
  • You want added immune and anti-inflammatory protection. 

Still, this category of supplements is relatively new, and there are many unreliable products out there. At BodyBio, we have been making BodyBio Butyrate for 25 years, and we always prioritize quality in all of our supplements, leaving out fillers or additives. 

Are Postbiotics the New Probiotics? 

For now, postbiotics are relatively undefined and a bit of a dark horse in the health and wellness and supplement world. As an end product of probiotics, the question naturally arises: should you skip probiotics altogether and go straight for the postbiotics? 

The answer, as you might expect, is not cut and dry. If you are using a probiotic supplement or regularly incorporating probiotic foods and find that it is helping you, by all means, continue. But if you are one of the many who have not found relief from digestive issues using probiotics, postbiotics may be a better option. 

Since everyone’s microbiome is unique, probiotics can sometimes make digestion worse by adding the wrong kind of probiotic bacteria to an already imbalanced microbiome. But everyone needs postbiotics, especially SCFAs like butyrate, for gut health. So, for most people, postbiotic supplementation or increasing postbiotic-rich foods may be more beneficial for their personal microbiome and gut environment.

Get a Postbiotic Boost with Butyrate

Postbiotics are a new frontier in the alternative health space. With so much more research to be done, we’ve barely scratched the surface of these remarkable probiotic-made compounds. We can’t wait to see how the world of postbiotics continues to grow and evolve!

Now that you know the differences between prebiotics and probiotics and postbiotics, you can start taking advantage of their power through your diet and supplements like Bodybio Butyrate!

Related Articles

Butyrate and IBS: What Your Gut Cells Actually Need
Ashley Palmer | 04.24.2026

Butyrate and IBS: What Your Gut Cells Actually Need

You've tried the probiotics. You've cleaned up your diet. You're doing everything you're supposed to do, and your gut still isn't cooperating.

If you have IBS, that frustration is familiar. Bloating, urgency, unpredictable mornings, the constant guessing game of what's going to set things off.

What often gets missed in the conversation around IBS isn't a trendy new supplement or a stricter elimination diet. It's something more foundational: what your gut's own cells actually need to function.

Here's a closer look at what butyrate does, why IBS and low butyrate levels are closely linked, and how supporting the gut at the cellular level can make a difference.

Table of Contents:

  • Understanding Butyrate

  • How Butyrate Works in the Gut

  • Why This Becomes an Issue for People With IBS

  • Supporting the Body More Effectively

  • Butyrate, IBS, and the Cellular Health Connection

  • How Butyrate Supports IBS Comfort Long-Term

Understanding Butyrate

Butyrate is a short-chain fatty acid (SCFA) produced in the colon when beneficial gut bacteria ferment dietary fiber, specifically resistant starch. It belongs to a class of compounds called postbiotics, the functional byproducts of a healthy microbiome.

Unlike probiotics, which are living bacteria, butyrate is a metabolite. It's a compound your body puts to work directly at the cellular level. Understanding the difference between probiotics and postbiotics, like butyrate, is a useful shift you can make when thinking about gut health.

Why the Body Relies on Butyrate

Your colon is lined with specialized cells called colonocytes. These cells run almost entirely on butyrate, providing up to 90% of their energy needs.

When colonocytes have what they need, they do their job well. They maintain the integrity of the gut lining, regulate what passes into the bloodstream, support a healthy inflammatory response, and help keep gut motility on track. Without enough butyrate, the gut’s main source of energy, the gut simply can't do its job well.

How Butyrate Works in the Gut

Butyrate supports three interconnected systems in the gut: the gut lining, the immune environment, and gut motility.

The gut lining is just one cell layer thick. Butyrate fuels those cells and supports the tight junctions between them, the structural connections that keep the barrier intact and functioning.

At the immune level, butyrate helps the body maintain a balanced inflammatory response in the colon without triggering overactivation. And because it directly influences the rhythmic contractions that move contents through the digestive tract, it plays a meaningful role in the irregular patterns that so many people with IBS experience.

What Happens When Butyrate Levels Are Supported vs. Strained

When butyrate is available in adequate amounts, the gut lining stays resilient, motility is more regular, and digestive comfort improves, whether you have a diagnosis of IBS or not.

If butyrate levels fall short, the gut barrier may become less stable, motility can become unpredictable, and the colon's immune environment may shift. How pronounced these patterns are varies from person to person. Diet, stress, genetics, and microbiome composition all play a role in your body’s patterns too.

Why This Becomes an Issue for People With IBS

Modern Stressors on Butyrate Production

Butyrate is made by gut bacteria that ferment resistant starch, a type of fiber found in foods like cooked and cooled potatoes, legumes, and underripe bananas. The modern diet is low in these foods. That means many people simply aren't giving their gut bacteria the raw materials they need to produce adequate butyrate levels.

Antibiotic use, chronic stress, and certain medications can also reduce the population of butyrate-producing bacteria in the colon. Over time, that compounds the butyrate production gap.

Why Common Approaches Often Fall Short

Probiotics can be a valuable part of gut health support, but most probiotic strains are not butyrate-producing species. They can shift the microbiome, but they don't directly address the fuel shortage that many IBS-related symptoms may stem from.

Fiber-based approaches come with a similar challenge. In some people with IBS, increasing fermentable fiber can worsen bloating and gas before it helps, because a disrupted microbiome may not efficiently use that fiber to make butyrate.

Since butyrate works at the cellular level, the signs of low butyrate can overlap common IBS symptoms, which is part of why the connection between the two gets overlooked.

Supporting the Body More Effectively

Foundational Support for Butyrate Production

Diet is the first step to improving the body's natural butyrate production. Foods high in resistant starch give butyrate-producing bacteria what they need to function properly.

Foods that naturally support butyrate production include cooked and cooled rice, potatoes, and legumes. A steady intake of resistant starch over time does more for the microbiome than occasional high-fiber days followed by low-fiber ones.

Stress management and adequate sleep can also support a more stable gut environment. Chronic stress directly affects microbiome composition and motility through the gut-brain axis. 

When Targeted Butyrate Support Makes Sense

For people whose microbiome is disrupted or whose diet can't consistently provide enough resistant starch, direct butyrate supplementation is another option for long-term support.*

Supplemental butyrate delivers the short-chain fatty acid directly to the colon, where colonocytes can put it to use.* Clinical research has shown that sodium butyrate supplementation is associated with improvements in abdominal comfort and bowel regularity in people with IBS.

Sodium butyrate and calcium magnesium butyrate are both effective options, and the differences between which works best for your body often come down to your individual health history and mineral needs.*

Butyrate, IBS, and the Cellular Health Connection

IBS is complex, and its causes vary from person to person. But one consistent finding in the research is that people with IBS tend to have lower levels of butyrate-producing bacteria and overall reduced short-chain fatty acids in the gut. That points to a cellular resource problem as much as a microbiome problem.

When the cells lining the colon are undersupported, the entire digestive environment becomes less stable. Gut barrier function, motility, immune signaling, and communication along the gut-brain axis all depend on colonocytes having what they need to function.

Supporting the gut at the cellular level is not a replacement for other gut health practices (whole food probiotics, exercise, etc.). It’s the foundation that makes those practices more effective. When your cells are supported, the body functions more efficiently as a whole.

How Butyrate Supports IBS Comfort Long-Term

IBS can feel like a moving target, and the path toward better digestive comfort is rarely a straight line or a quick fix. Supporting your gut at the cellular level creates a more stable foundation, and that starts with making sure colonocytes have the fuel they need.*

Butyrate works best as part of a consistent approach that includes diet, lifestyle, and targeted support where needed. Progress tends to be gradual, and that's expected. It reflects the time it takes for the gut lining to strengthen and the microbiome to rebalance.

IBS makes a lot more sense when you know what the gut's cells actually need. And that clarity is often where real progress begins.

Support your gut at the cellular level with BodyBio Butyrate.*

How Sugar and Stress Impact Gut Health (and How to Support It During the Holidays)
Ashley Palmer | 11.25.2025

How Sugar and Stress Impact Gut Health (and How to Support It During the Holidays)

Between the office party appetizers, your aunt's famous cookies, and that second or third glass of wine at dinner, your gut is working overtime this holiday season. Add in travel stress, family dynamics, and back-to-back celebrations, and you've got the perfect storm for digestive chaos. Your microbiome gets thrown off balance, bloating kicks in, and suddenly, you're fighting to recover while the next event looms ahead on the calendar.

But you don't have to choose between enjoying the holidays and feeling good. A few simple habits and smart supplement support like butyrate can keep your gut balanced and your energy steady, even when you're indulging more than usual.*

Table of Contents:

  • How Sugar Disrupts Gut Health

  • The Stress-Gut Connection

  • Alcohol's Role in Gut Imbalance

  • Supporting Your Gut During the Holidays

  • Butyrate Q&A: Your Holiday Gut Support Ally

  • Keep Your Gut (and Holidays) Happy

How Sugar Disrupts Gut Health

Sugar is everywhere during the holidays, from dessert spreads to seasonal lattes. And while your taste buds are celebrating, your gut (and metabolism) is dealing with the consequences.

Refined Sugar and the Microbiome

When you're eating more holiday cookies and desserts than usual, certain bacteria in your gut that love simple carbohydrates start to flourish. This temporary shift can show up as stronger cravings, more bloating, or mood changes, which may help explain why you keep going back to the cookie tray.

When this imbalance sticks around, it can affect your gut barrier (the protective lining that keeps your gut contents where they belong). When that barrier gets compromised, bacterial byproducts (waste and toxins produced by bacteria) slip into your bloodstream and trigger inflammation throughout your body. Since at least 70-80% of your immune system lives in your gut, keeping this barrier strong is especially important during the holidays when you're more susceptible to seasonal bugs. 

This systemic inflammation can even show up as breakouts or dull skin, another reminder of how deeply your gut health affects your whole body.

Sugar Spikes and Cellular-Level Stress

Those cookie-fueled blood sugar rollercoasters don't just zap your energy. They create stress at the cellular level. Your mitochondria have to work overtime to manage these ups and downs. The oxidative stress that results from these swings doesn't stay in your gut. It affects your whole body, compounding the stress you're already feeling and making recovery that much harder.

The Stress-Gut Connection

Between travel logistics, family gatherings, and year-end deadlines, the holidays can send your cortisol levels soaring. That stress response directly impacts how your gut functions.

The Gut-Brain Axis in Action

Your gut and brain are in constant conversation through the gut-brain axis. When stress rises (from travel chaos, family dynamics, or that never-ending to-do list), your body pumps out cortisol to help your body handle it. Cortisol slows digestion and weakens your gut barrier, exactly when you need them working their best.

Holiday Stress + Sugar = A Rough Combination

When emotional stress meets dietary stress, the side effects can multiply quickly. This is why bloating, constipation, and relentless sugar cravings often show up together during the busiest weeks of the year. Your gut is working overtime to keep up.

Alcohol's Role in Gut Imbalance

Holiday cocktails and wine (or your beverage of choice) add another layer of stress to an already taxed digestive system, particularly when it comes to gut barrier integrity.

How Alcohol Affects the Gut Barrier

Alcohol increases gut permeability, making that protective barrier more porous, and feeds inflammation in your digestive tract. It also depletes beneficial compounds like butyrate that your gut needs to stay strong.

The Next-Day Domino Effect

Ever notice how after a night with just one or two cocktails, you sleep poorly, crave sugar like crazy, and feel more stressed the next day? Each of these factors puts more strain on your microbiome, creating a cycle that's tough to break when holiday parties stack up week after week.

But that doesn’t mean you have to abstain from the fun altogether to shield your gut from harm. You just need a plan to minimize the side effects. 

Supporting Your Gut During the Holidays

You can protect your gut without skipping the celebrations with just a few, simple, strategic habits that make all the difference.

Lifestyle Swaps

You don't need to overhaul your entire holiday routine. A few small shifts make a real difference:

Hydrate between drinks. No seriously, alternate a tall glass of water after each drink, preferably with added electrolytes. Water + key minerals help your body process both sugar and alcohol more efficiently.

Pair sweets with protein or healthy fats. A handful of nuts with that cookie, or hard cheese with your dessert, slows glucose absorption and prevents wild blood sugar spikes.

Move daily. Even a 15-minute walk after meals helps regulate stress hormones and gets your digestion moving. Get the whole family involved for more quality time together!

Eat butyrate-rich foods. Foods like butter, ghee, and aged cheeses naturally contain some butyrate, while fiber-rich foods like cooked and cooled oats, slightly underripe bananas, and legumes help your gut bacteria produce more of it.

Smart Supplement Support: Butyrate

Butyrate is a postbiotic (a beneficial compound that your good gut bacteria naturally produce) that supports your gut lining, reduces inflammation, and helps keep your microbiome balanced. It's the perfect holiday event partner for your gut.*

During the holidays, butyrate helps you:

  • Skip the bloat with no more uncomfortable gas after meals*

  • Digest rich foods without the heavy, sluggish feeling*

  • Balance blood sugar after dessert (high spikes → gentle hills)*

  • Recover faster between celebrations by strengthening your gut barrier*

Butyrate is flexible. You can take it with or without food, and dose up or down based on your needs (up to six capsules per day). Already taking a probiotic that works for you? Butyrate works alongside it (more on that below).

Butyrate Q&A: Your Holiday Gut Support Ally

Q: Can I take butyrate with or without food?
A: Either way works. Take it however feels best for you. Some people prefer it with meals, others between. The most important thing is to stay consistent for gut protection.

Q: Is butyrate the same as a probiotic?
A: No, it's a postbiotic! Probiotics add beneficial bacteria to your gut. Butyrate is what healthy bacteria produce to keep your gut lining healthy and reduce inflammation.*

Q: Can I take butyrate with probiotics?
A: Absolutely. Probiotics repopulate the good bacteria, while butyrate strengthens the environment they need to thrive. They work well together. If probiotics are giving you some beneficial results but not all, butyrate can help bridge the gap.* 

Keep Your Gut (and Holidays) Happy

Sugar, stress, and alcohol are part of the holiday package, and that's okay (in moderation of course). They don't have to derail how you feel or leave you fighting to bounce back.

Your gut doesn't need perfection; it simply needs nutrition, hydration, movement, and smart support when things get hectic. Butyrate is the perfect holiday event partner to support your gut microbiome and gut lining through every celebration, so you can enjoy the season without total gut and metabolic disruption.

When sugar, stress, and alcohol impact your gut this season, support your microbiome with BodyBio Butyrate.*

The Gut-Brain Axis: How Your Gut Health Shapes Mood, Mind, and More
Ashley Palmer | 08.19.2025

The Gut-Brain Axis: How Your Gut Health Shapes Mood, Mind, and More

If you're struggling with brain fog, poor focus, or mood swings, you might think the problem is in your head. But the real culprit is likely sitting about three feet lower, in your gut. Your digestive system is constantly communicating with your brain through the gut-brain axis, and when that communication breaks down, your mental clarity and mood suffer.

At BodyBio, we've strived to create products that support this connection for over 25 years because it perfectly demonstrates our core philosophy: cellular health is the foundation of every system in your body. When you support the cellular function of both your gut and brain (and the nervous system that connects them), you're optimizing a communication network that determines how you feel every single day.

Table of Contents:

  • What Is the Gut-Brain Axis?

  • How Gut Bacteria Control Your Brain Chemistry

  • Why Cellular Health Determines Gut-Brain Communication

  • Butyrate Benefits for Gut-Brain Health

  • Supporting Your Gut-Brain Highway

  • Why BodyBio Butyrate Addresses the Root Cause

  • Recognizing Gut-Brain Disconnection

  • Your Gut-Brain Connection Determines Your Daily Experience

What Is the Gut-Brain Axis?

The gut-brain axis is a bidirectional (two-way) communication network. When this communication breaks down, you get symptoms like brain fog, mood swings, and cognitive issues. Your digestive system faces constant exposure to environmental toxins and harmful microbes that your brain never encounters directly, so these communication breakdown symptoms typically start there and travel upward.

Your gut contains over 500 million neurons (more than your spinal cord!) and produces about 90% of your body's serotonin (the "happiness hormone"). With all this neural activity, scientists actually call the gut your "second brain," and your gut communicates with the brain in your head through several fascinating pathways.

The most important connection is the vagus nerve, which acts like a major highway between your gut and brain, carrying messages in both directions within milliseconds. When your gut detects problems, the vagus nerve is often the first messenger to alert your brain, which explains why digestive issues so quickly affect mood and cognition.

Your gut also houses about 70% of your immune system, and these immune cells constantly monitor what's happening in your digestive tract. They’re constantly sending inflammatory or anti-inflammatory signals directly to your brain. Meanwhile, the trillions of bacteria in your gut are producing metabolites 24/7 (compounds created during digestion, such as SCFAs) that can cross into your bloodstream and influence your brain chemistry.

Your gut health also determines how well you absorb the vitamins, minerals, and healthy fats your brain needs to function. This is why bioavailable supplements are so important. When gut function is compromised, even a perfect diet may not deliver the nutrients your brain needs.

How Gut Bacteria Control Your Brain Chemistry

Your gut microbiome consists of different bacterial species producing compounds that directly influence your mental state. When this system is working well, you feel mentally sharp and emotionally balanced. When it's disrupted, you may experience signs of poor gut health that affect both digestion and mental function.

Your gut bacteria are manufacturing these brain chemicals:

Neurotransmitter

What It Controls

When It’s Balanced

Warning Signs of Deficiency

Serotonin

Mood, sleep, appetite, gut motility

Happy, calm, sleeping well, good digestion

Anxious, depressed, insomnia, digestive issues

GABA (gamma-aminobutyric acid)

Nervous system calming, anxiety control

Relaxed, focused, stress-resilient

Anxious, overwhelmed, racing thoughts

Dopamine

Motivation, pleasure, reward processing

Motivated, satisfied, energized

Unmotivated, anhedonia, chronic fatigue

Acetylcholine

Memory, attention, learning

Sharp thinking, good focus, clear memory

Brain fog, poor concentration, memory lapses

Modern life constantly disrupts this bacterial balance. Processed foods, antibiotics, chronic stress, artificial sweeteners, and environmental toxins can wipe out beneficial bacteria while allowing harmful species to proliferate.

Recent research from 2023 consistently shows that people with anxiety and depression have distinctly different gut bacteria patterns compared to mentally healthy individuals, specifically, fewer beneficial bacteria and more inflammatory species.

When your gut barrier becomes compromised, inflammatory molecules escape into your bloodstream and can reach your brain. This neuroinflammation interferes with normal neurotransmitter function and has been directly linked to depression, anxiety, brain fog, and cognitive decline.

Why Cellular Health Determines Gut-Brain Communication

The gut-brain connection works at the cellular level. Your gut lining consists of epithelial cells that are absolutely remarkable. These cellular guardians completely regenerate every 3-5 days while maintaining sophisticated tight junctions that control what gets through, allowing beneficial nutrients in while blocking harmful substances.

Cell health determines barrier integrity. When these epithelial cells (the cells that form protective barriers) are healthy and well-nourished, they maintain strong barrier function. When cellular health is compromised, you get increased intestinal permeability (leaky gut), and that's when problems cascade upward, to the brain.

The cellular problem cascade works like this:

  1. Healthy gut cells → Strong barrier function → Optimal nutrient absorption → Good brain function

  2. Compromised gut cells → Leaky gut → Poor nutrient absorption + inflammation → Brain fog, mood issues, cognitive problems

The cellular nutrients that support gut health also support brain cell function (and vice versa). Phospholipids are essential for both intestinal cell membranes and neural cell membranes. Mitochondria (the power house of the cell) in both gut and brain cells require identical nutrients to produce energy efficiently.

This is why our approach focuses on providing fundamental cellular building blocks rather than just targeting isolated symptoms. When you nourish your cells, you nourish every system, including this crucial gut-brain communication network.

Some of the most important nutrients for optimal gut-brain function include:

  • Phospholipids for healthy cell membranes and communication

  • Quality fats for mitochondrial function and hormone production

  • B vitamins for energy production and neurotransmitter synthesis

  • Minerals for enzymatic processes and cellular repair

Butyrate Benefits for Gut-Brain Health

Among all the compounds your gut bacteria produce, butyrate stands out as perhaps the most important for both digestive and neurological health. This short-chain fatty acid serves as premium fuel for colonocytes (gut lining cells), providing up to 70% of their energy needs.*

Butyrate's multifaceted benefits:

For cellular gut health: Butyrate directly fuels the epithelial cells that maintain your intestinal barrier. It strengthens the tight junction proteins that connect cells together, reduces local inflammation, and supports the protective mucus layer that shields your gut lining.*

For brain function: Recent studies from 2024 demonstrate that butyrate can cross the blood-brain barrier and provide direct neuroprotective benefits (brain-protecting benefits). It acts as a histone deacetylase inhibitor (a compound that influences which genes are active), influencing gene expression in ways that support neuroplasticity, stress resilience, and cognitive function.*

For healthy inflammation responses: Butyrate works with your body's natural processes to support balanced inflammation, creating the right environment for optimal gut-brain signaling.*

Modern butyrate deficiency is widespread. Our ancestors consumed much more resistant starch (the specific fiber that feeds butyrate-producing bacteria), but modern diets are heavily processed and fiber-poor. Alongside poor dietary fiber, stress, medications, and environmental toxins are constantly working against beneficial bacteria.

Even when people eat more fiber, it can take months to rebuild the bacteria that produce butyrate. Fortunately, studies suggest that direct butyrate supplementation can provide immediate support for both gut barrier function and neurological health.*

Supporting Your Gut-Brain Highway

The right foods can boost butyrate-producing bacteria naturally. These beneficial species thrive on resistant starches found in cooked and cooled potatoes, rice, and legumes. The cooling process creates starch that becomes more digestible to bacteria. Unripe bananas, certain whole grains, and Jerusalem artichokes also provide resistant starch.

Your stress levels directly impact gut bacteria composition. Chronic stress literally reshapes your microbiome and increases intestinal permeability. Since the vagus nerve carries stress signals directly to your gut, managing stress protects this crucial communication pathway.

Quality sleep matters more than most people realize. Your gut bacteria have their own daily cycles that align with your sleep patterns. Poor sleep disrupts bacterial metabolism and increases intestinal permeability, affecting both ends of the gut-brain axis.

Regular movement supports the entire system. Exercise promotes beneficial bacteria diversity, supports healthy gut motility, and activates the vagus nerve in positive ways. You don't need intense workouts — even consistent walking makes a measurable difference.

Why BodyBio Butyrate Can Support the Gut

Most people can't produce a therapeutic amount of butyrate naturally, even with improved diet and lifestyle. Damaged gut cells can't effectively utilize the butyrate that bacteria do produce, while compromised bacterial populations can't manufacture sufficient amounts in the first place.

BodyBio Butyrate provides direct cellular support by:

  • Delivering butyrate directly to gut epithelial cells for immediate barrier repair*

  • Supporting tight junction integrity that prevents harmful substances from reaching your brain*

  • Promoting a balanced inflammation response throughout the gut-brain axis*

  • Optimizing the cellular environment for improved nutrient absorption and neurotransmitter production*

Recognizing Gut-Brain Disconnection

Since gut problems usually initiate the cascade, recognizing early warning signs can help you address issues before they significantly impact brain function.

Digestive symptoms often appear first: bloating, gas, irregular bowel movements, food sensitivities, or that heavy feeling after eating. These early signs can indicate developing digestive gastrointestinal diseases that affect gut-brain communication.

More advanced gut-brain disruption shows up as persistent brain fog, memory issues, chronic anxiety or depression, autoimmune symptoms, or frequent illness. Problems with nutrient absorption can cause fatigue despite a good diet, slow wound healing, brittle nails, thinning hair, or persistent nutritional deficiencies despite supplementation.

If you're experiencing several of these symptoms, your gut-brain axis may need cellular level support to restore optimal communication.

Your Gut-Brain Connection Determines Your Daily Life

Your gut-brain connection affects how you feel every day. When your microbiome composition and your gut lining break down, communication with your brain gets disrupted, leading to brain fog, mood issues, and cognitive problems.

Supporting this system at the cellular level makes the biggest difference. While dietary and lifestyle changes help, many people benefit from targeted gut health supplements to optimize their second brain.*

Your gut really is your second brain. When you take care of both systems at the cellular level, you're setting yourself up for clearer thinking, better mood stability, and improved overall health.

Support your gut-brain axis with BodyBio Butyrate →*