Tributyrin: Supporting Gut Barrier and Digestive Health

The Butter Compound Your Gut Has Been Missing

Many people ask themselves if they should start eating more butter for their gut health. It isn’t as silly a question as it sounded. Buried inside butterfat is a small, unassuming molecule called tributyrin, and it turns out to be one of the more elegant solutions nature came up with for a problem that has frustrated researchers and supplement formulators for decades: how do you get butyrate, the short-chain fatty acid your colon cells practically live on, to actually survive the trip down to where it’s needed?

Because that’s the catch with butyrate. It’s arguably the single most well-studied metabolite tied to gut lining integrity, and yet if you just take it on its own, most of it gets soaked up in the small intestine before it ever reaches the colon. Tributyrin sidesteps that problem in a way that feels almost too simple once you understand it. It’s a triglyceride, meaning it’s built from a glycerol backbone with three butyrate molecules attached, and that structure changes everything about how it behaves in the gut.

Tributyrin is naturally present in butter and other dairy fats. It’s also, increasingly, a compound people are seeking out deliberately in supplement form, since eating enough butter to matter isn’t exactly a reasonable health strategy. Once tributyrin reaches the small intestine, pancreatic lipases go to work breaking those ester bonds, releasing free butyrate that can be absorbed locally or, depending on formulation and dose, carried further along the tract than butyrate taken in its free acid form would typically go, since it resists gastric acid and is converted to butyrate by pancreatic lipases.

Why does any of this matter for the average person scrolling through wellness content at eleven at night? Because the gut barrier is not some abstract, niche topic. It’s the wall between what should stay inside your gut and what shouldn’t. Undigested food particles, bacterial fragments, environmental toxins circulating through your intestines, none of that belongs in your bloodstream. Tight junctions, the protein structures that seal the gaps between intestinal cells, are the gatekeepers. And butyrate, delivered efficiently, appears to play a genuine role in supporting how well those gatekeepers do their job.

I want to be upfront about something before we go further. Tributyrin research is still young. Some of the most compelling data comes from cell models, simulated gut environments, and small pilot studies in humans rather than massive randomized trials. That doesn’t make it uninteresting. It makes it a compound worth watching closely, with a healthy dose of intellectual honesty about what’s confirmed versus what’s promising but preliminary.

There’s also a practical, almost mundane reason tributyrin has drawn attention: butyrate itself smells and tastes genuinely unpleasant. Anyone who has tried sodium butyrate capsules knows the rancid, faintly cheesy odor that can seep out even through enteric coatings. Tributyrin, being a neutral triglyceride rather than a free fatty acid salt, tends to be far more tolerable, which matters enormously for something people are expected to take daily. Compliance is not a small detail in nutrition science. A supplement nobody wants to keep taking doesn’t help anyone, no matter how promising the mechanism looks on paper.

What we’re going to walk through here is grounded specifically in what the current research actually shows, not what marketing copy wishes it showed. We’ll get into how tributyrin appears to support the gut lining and digestive comfort, where you’d actually encounter it in food, what doses have been studied in human trials, and where the boundaries of safety data currently sit. Digestive health is one of those areas where a lot of people are quietly struggling, whether it’s bloating that never quite resolves, irregular bowel patterns, or a general sense that something about their gut isn’t running smoothly, and understanding a compound like this is one more piece of a much bigger picture. Nobody is claiming tributyrin single-handedly fixes a gut. It’s not a cure for anything. But as a supporting player in a broader strategy that includes fiber, whole foods, and reasonable lifestyle habits, it deserves a real, unhurried look.

So let’s get into what it actually does.

Key Health Benefits

The gut barrier isn’t a single wall so much as a layered system: a mucus coating, a single-cell-thick epithelial lining, tight junction proteins stitching those cells together, and an immune layer sitting just beneath, learning to distinguish harmless material from genuine threats. Tributyrin’s relevance touches several of these layers at once, largely because of what happens once it’s broken down into butyrate.

Feeding the Cells That Guard the Barrier

Colonocytes, the cells lining your colon, don’t primarily run on glucose the way most cells in your body do. Butyrate is the major energy source for colonocytes, and some research suggests these cells derive the majority of their energy needs from short-chain fatty acid oxidation rather than from blood glucose. That’s a striking detail. Your colon lining is essentially outsourcing its fuel supply to a metabolite produced by fermentation or delivered directly through compounds like tributyrin. When that fuel supply is abundant, colonocytes appear better equipped to maintain themselves, repair minor damage, and keep the barrier intact. When it’s scarce, which can happen with low-fiber diets that starve the bacteria responsible for producing butyrate naturally, the lining may become more vulnerable.

This is really the foundational piece of the whole story. Everything else tributyrin is associated with, tighter junctions, calmer inflammation, better microbial balance, tends to trace back to this simple fact: butyrate is preferred fuel for the cells standing between your gut contents and the rest of your body.

Supporting Tight Junction Integrity

Tight junctions are made of dozens of interacting proteins, occludin and the claudin family among the better studied ones, and their job is to regulate what’s allowed to pass between epithelial cells rather than through them. When this regulation breaks down, you get increased intestinal permeability, sometimes referred to informally as “leaky gut,” a term I use cautiously since it gets thrown around loosely in wellness spaces without much nuance.

Animal research on tributyrin specifically has shown some genuinely interesting results here. In one study involving antibiotic-treated mice, tributyrin supplementation appeared to protect against antibiotic-induced drops in short-chain fatty acid levels and was associated with reduced intestinal tissue expression of inflammatory mediators and increased expression of tight junction proteins compared with mice who received a placebo, suggesting that tributyrin has a protective effect on the intestinal barrier. That’s animal data, not human data, and I always want to flag that distinction clearly. But it’s a mechanistically coherent finding that lines up with decades of separate research on butyrate’s role in tight junction regulation more broadly.

More recent laboratory work simulating the human digestive environment reinforced this picture from a different angle. Using an in vitro model designed to mimic conditions across the gut, researchers found that tributyrin fermentation had a protective effect on the intestinal barrier and exerted immunomodulatory properties. It’s not a human clinical trial, but it’s a sophisticated simulation, and it adds another data point to a growing, consistent thread.

A Possible Anti-Inflammatory Signal

Chronic low-grade inflammation sits underneath an uncomfortable number of modern health complaints, and the gut is frequently where that inflammatory tone gets set. One small pilot study in healthy adults, using a tributyrin-based supplement over three weeks, reported measurable shifts in an inflammatory marker. Specifically, oral supplementation with a tributyrin complex for 21 days resulted in reduced levels of high-sensitivity C-reactive protein, suggesting a possible anti-inflammatory effect.

I want to be careful here, because hs-CRP is a general inflammation marker, not a gut-specific one, and a single pilot study with a modest sample size doesn’t establish causation on its own. Interestingly, a separate randomized pilot trial testing two different tributyrin doses in twenty-four healthy adults found trends toward reduced hs-CRP and interferon gamma that didn’t reach full statistical significance in every comparison, while also reporting no meaningful changes in intestinal permeability markers over the three-week window. That’s the kind of mixed, honest result that real research produces far more often than the clean, dramatic story you sometimes see repeated in supplement marketing. Still, taken together with the mechanistic and animal data, there’s a reasonably consistent signal pointing toward some anti-inflammatory relevance, even if the size and reliability of that effect in humans isn’t fully settled.

Feeding a More Favorable Microbial Community

Here’s something that surprised even me when I dug into it: tributyrin doesn’t just feed your own cells, it appears to influence which bacteria thrive in your colon. Using a laboratory model that simulates the entire human intestinal microbial environment across multiple donor samples, three weeks of daily tributyrin exposure increased butyrate levels and shifted the microbial community toward greater abundance of certain beneficial species, including Bifidobacterium and Akkermansia muciniphila, an organism increasingly linked in the broader literature to a healthier, thicker mucus layer.

That mucus layer point deserves a moment of attention on its own. It’s easy to focus entirely on tight junctions when talking about gut barrier function, but the mucus coating sitting above the epithelial cells is arguably just as important, acting as the first line of defense before bacteria and food particles ever reach the cell layer itself. A microbial shift that favors mucus-supporting species is a meaningfully different kind of benefit than a purely energetic one.

Digestive Comfort, With a Caveat

This is where I’ll admit the evidence gets thinner and more indirect. People taking tributyrin supplements sometimes report improvements in bloating, stool consistency, or general digestive comfort. It’s plausible, given butyrate’s established role in colonic motility and its anti-inflammatory signaling, that some people would notice this. But direct, well-controlled human trials measuring digestive symptoms specifically as a primary outcome for tributyrin are limited right now. I’d rather tell you honestly that this piece is more theoretical and anecdotal than the tight junction or colonocyte energy points, which rest on firmer ground.

Emerging, Broader Interest

It’s worth briefly noting that tributyrin research has started branching well beyond gut health into areas like neurological function and mood, largely because of the gut-brain axis. A pilot study in people with Parkinson’s disease found that a 500 mg, three-times-daily dose over thirty days produced a reassuring safety profile and evidence that the supplement was reaching its intended targets in the body. Separately, a randomized trial protocol is currently underway examining whether tributyrin, dosed at 4 grams daily, might support people with depression as an add-on to standard antidepressant treatment. Neither of these studies tells us anything definitive about gut health specifically, but they do underscore that researchers are taking tributyrin seriously enough to fund larger, more rigorous work, which is a reasonable proxy for how promising the early mechanistic story looks.

None of this adds up to tributyrin being a miracle compound. It adds up to a genuinely interesting, biologically plausible supporter of gut barrier function with a research base that’s still filling in its gaps, one study at a time.

Dietary Sources

If you’re wondering whether you can just eat your way to more tributyrin, the honest answer is: sort of, but not efficiently, and probably not enough to matter therapeutically.

Butter Is the Standout

Butter is, by a wide margin, the richest naturally occurring dietary source of tributyrin and its parent fatty acid, butyric acid. Bovine milk fat and its derivatives are a great source of butyric acid, with butter containing roughly 3 grams per 100 grams. That number sounds substantial until you remember that butter isn’t pure tributyrin, it’s a complex mixture of many different triglycerides, and butyric acid within it exists across multiple ester forms, not exclusively as tributyrin. Still, of everything sitting in a typical kitchen, butter carries the highest concentration by a comfortable margin.

There’s a reason for this that comes down to ruminant digestion. Cows, along with other ruminants, host bacteria in their rumen that ferment plant material and produce short-chain fatty acids, including butyric acid, which then gets incorporated into milk fat. This is part of why grass-fed dairy products sometimes show different short-chain fatty acid profiles compared to conventionally raised dairy, since diet influences what the rumen microbiome produces.

Other Dairy Fats, in Smaller Amounts

Moving down the list, other full-fat dairy products carry meaningfully less butyric acid than butter but still contribute something. Goat’s cheese contains approximately 1 to 1.8 grams per 100 grams, parmesan comes in around 1.5 grams per 100 grams, and whole cow’s milk contains a much smaller amount, roughly 0.1 grams per 100 grams. Aged, fermented cheeses tend to carry a bit more than fresh dairy products, likely due to ongoing microbial and enzymatic activity during aging that can generate additional short-chain fatty acid esters.

Cream sits somewhere between milk and butter in concentration, which tracks with its fat content generally landing between those two products. If you’re someone who already includes moderate amounts of full-fat dairy in your diet, you’re getting some baseline dietary butyrate exposure without doing anything deliberate.

Why Food Alone Rarely Gets You There

Here’s the practical reality, though. The doses studied in human tributyrin research, ranging from around 500 milligrams up to several grams daily in various trials, are difficult to reach through butter and cheese alone without also taking in a large amount of saturated fat and calories along the way. You’d need to eat a genuinely excessive quantity of butter, well beyond anything reasonable from a broader cardiometabolic health standpoint, to approach even the lower end of studied supplemental doses.

This is exactly the gap that led researchers and supplement manufacturers to isolate and concentrate tributyrin into capsule or softgel form in the first place. It lets you access a therapeutic-range dose of the compound without the saturated fat load that would come with eating equivalent amounts of butter. I think this distinction matters and gets glossed over sometimes in casual conversation: eating butter for gut health and taking a tributyrin supplement for gut health are related but genuinely different strategies with very different tradeoffs.

Indirect Sources: Feeding Your Own Butyrate Production

There’s a second, arguably more sustainable path worth mentioning here, even though it’s technically about butyrate rather than tributyrin directly. The most effective way to increase intestinal butyrate levels is often not through direct dietary butyrate or its esters at all, but by consuming non-digestible carbohydrates that your own gut bacteria ferment into short-chain fatty acids, including butyrate, in situ. This means resistant starch found in cooked and cooled potatoes or rice, fiber from legumes, oats, and a wide range of vegetables, and prebiotic fibers like inulin all indirectly support your colon’s own butyrate supply through fermentation by resident bacterial species such as Faecalibacterium prausnitzii.

I bring this up because I don’t want anyone walking away from this article thinking tributyrin supplementation is the only lever available, or even necessarily the first one worth pulling. For most people without a specific clinical reason to seek out concentrated tributyrin, building a fiber-rich diet that supports your own colonic fermentation is likely the more foundational, better-studied, and more sustainable long-term approach. Tributyrin supplementation is better understood as a targeted, more direct-delivery option layered on top of that foundation, not a replacement for it.

Fermented Foods, With Modest Expectations

Fermented dairy products, certain aged cheeses in particular, undergo microbial transformations during aging that can produce small additional amounts of short-chain fatty acid esters. Don’t expect this to move the needle dramatically, though. The concentrations involved are a fraction of what’s found in butter itself, and the variability between specific products, aging times, and production methods makes it hard to give a precise, reliable number.

Dosage & Deficiency

Let’s talk numbers, because vague reassurances about “supporting gut health” without concrete dosing information aren’t particularly useful to anyone trying to make an actual decision.

What’s Actually Been Studied in Humans

The range of tributyrin doses tested in human research is genuinely wide, spanning from modest daily amounts intended for general wellness support up to much higher doses explored in oncology research decades ago. On the lower end, a pilot study in healthy adults tested doses of 200 milligrams and 400 milligrams daily, taken as one or two capsules containing a tributyrin complex, over a 21-day active phase following a placebo wash-in period. This trial reported the supplement was generally well tolerated across both dose groups.

A separate open-label study in people with Parkinson’s disease used a notably different regimen: 500 milligrams taken orally three times per day, which works out to 1.5 grams daily, sustained over a 30-day period. This trial specifically emphasized safety and tolerability alongside its exploratory clinical measures, and reported that participants adhered well to the regimen throughout.

On the higher end, a currently active randomized trial protocol examining tributyrin as an adjunct treatment for depression is using 4 grams of encapsulated tributyrin daily, a considerably higher dose than the pilot gut-health studies, reflecting the different therapeutic target and research question being asked. It’s worth noting this dose was selected partly based on modeling estimates of how it compares to typical daily butyrate intake, underscoring that dosing decisions in this field are still being actively worked out rather than firmly established.

Older oncology research pushed the dose ceiling much further, largely because the therapeutic goal there, achieving sustained high plasma butyrate concentrations to influence cancer cell behavior, is a fundamentally different objective than general gut barrier support. In one such trial, patients were treated with tributyrin at doses from 150 to 200 milligrams per kilogram, three times daily, which for a 70-kilogram adult would translate to roughly 31 to 42 grams per day. That’s an enormous distance from the gram-scale doses used in gut-health-focused trials, and it’s not a comparison I’d encourage anyone to draw casual conclusions from. Different population, different objective, different risk-benefit calculation entirely.

So What Does That Mean Practically?

If you’re looking at a commercial tributyrin supplement, you’ll typically find products dosed somewhere in the 500 milligram to 1 gram per capsule range, often suggesting one to two capsules daily, which lines up reasonably well with the lower end of what’s been studied for general wellness and gut support purposes. I’d be cautious about products marketing doses well above what’s been tested in the specific context of digestive or barrier health, simply because the safety and efficacy data at those higher ranges comes almost entirely from short-term oncology trials in sick populations, not from healthy adults using it as a long-term wellness supplement.

There isn’t yet a firmly established, universally agreed-upon optimal dose for gut barrier support specifically. The field is still in a phase where different research groups are testing different amounts, and a consensus hasn’t crystallized. That’s a fair, honest place to leave it, even if it’s less satisfying than a definitive number.

Is There Such a Thing as Tributyrin Deficiency?

Not really, at least not in the conventional sense we use for vitamins or minerals. Tributyrin isn’t classified as an essential nutrient your body requires from outside sources to survive. Your gut bacteria, given adequate dietary fiber, produce butyrate continuously through fermentation, independent of whether you’re consuming any tributyrin at all.

That said, there’s a meaningful related concept worth understanding: functionally low butyrate exposure at the colonic level. This can happen for a few overlapping reasons. Diets low in fermentable fiber simply don’t provide enough raw material for butyrate-producing bacteria to do their job. Antibiotic use can wipe out a substantial portion of the bacterial populations responsible for short-chain fatty acid production, sometimes for weeks or months afterward. Certain gastrointestinal conditions are also associated with reduced abundance of key butyrate-producing species like Faecalibacterium prausnitzii.

In these situations, someone isn’t “deficient” in tributyrin in a formal sense, but they may genuinely be running with lower colonic butyrate availability than would otherwise be ideal for barrier maintenance. This is really the population that tributyrin research, and butyrate research more broadly, has the most direct relevance to: people whose natural production pathway has been disrupted or diminished, rather than healthy individuals with a well-functioning, fiber-fed microbiome already producing plenty on their own.

Toxicity & Risks

I always think this section is the one people skip past too quickly, and it’s usually the most important one.

The Safety Data We Actually Have

The reassuring news is that across the human trials conducted so far, tributyrin has generally shown a favorable tolerability profile, even at doses considerably higher than what’s typically used for gut health purposes. In the oncology research from the early 2000s, which pushed doses up to 150 to 200 milligrams per kilogram three times daily, there was no dose-limiting toxicity observed, and escalation was ultimately halted not because of safety concerns but because of the sheer number of capsules required to reach those doses, a logistical problem rather than a biological one. That’s a fairly strong signal, even though it comes from a small, specific patient population rather than the general public.

More recent, lower-dose pilot work in healthy adults reinforces this picture. The Parkinson’s disease pilot study specifically described a reassuring safety profile with high rates of adherence across the 30-day supplementation period at 1.5 grams daily.

Where the Side Effects Do Show Up

That said, “generally well tolerated” doesn’t mean “tolerated by everyone without exception.” A separate pilot study comparing tributyrin doses in healthy adults noted that, outside of one participant who consistently experienced a cluster of gastrointestinal symptoms including diarrhea, bloating, gastrointestinal rumbling, gas, indigestion, and lower abdominal discomfort throughout the study period, reports of side effects among the rest of the group were either sporadic or entirely absent. That single participant’s experience is worth taking seriously rather than dismissing as an outlier, because it illustrates something true about any gut-active compound: individual gastrointestinal tolerance varies substantially, and someone with an already sensitive or irritable digestive system may respond quite differently than someone without one.

Gastrointestinal symptoms in general, mild bloating, changes in stool frequency, occasional gas, tend to be the most commonly reported category of side effect across the trials that have looked closely enough to track this, which makes intuitive sense given that the compound is specifically designed to be metabolized within the digestive tract itself.

Formulation Matters More Than People Realize

One detail that doesn’t get discussed enough: not all tributyrin products are created equal, and formulation appears to genuinely affect both stability and how much of the dose survives to be useful. Laboratory simulations of the upper digestive tract comparing capsule and softgel formulations of the same tributyrin compound found meaningfully different hydrolysis rates, with roughly 41% to 49% of the administered tributyrin dose being broken down before ever reaching the intended target, depending on which formulation was used. If you’re choosing between products, this is a reasonable thing to be curious about, though most consumer-facing labels won’t give you this level of formulation detail directly.

Who Should Be More Cautious

Because the deeper, larger-scale human safety data is still limited, particularly for long-term daily use in general healthy populations rather than short clinical trial windows, I’d encourage a bit more caution in a few specific situations. Pregnant or breastfeeding individuals aren’t well represented in the existing trials, so there simply isn’t enough data to speak confidently either way. People with significant, pre-existing gastrointestinal conditions, active inflammatory bowel disease flares, for instance, should really be working with a physician before adding any new gut-active compound, tributyrin included, since these conditions can behave unpredictably in response to shifts in colonic fermentation and short-chain fatty acid exposure.

There’s also a reasonable question mark around interactions with certain medications, given that butyrate has documented effects on gene expression through histone deacetylase inhibition, a mechanism that’s part of why it’s been explored in cancer research in the first place. This isn’t something to be alarmed about at typical low-gram supplemental doses, but it’s exactly the kind of detail that makes a conversation with a pharmacist or physician worthwhile if you’re on multiple medications, rather than something to sort out purely through internet research.

The Bigger Picture on Risk

Zooming out, tributyrin doesn’t carry the kind of red flags that would put it in a genuinely high-risk category. It’s naturally present in a food most people already eat in some quantity, the mechanism of action is well characterized, and the clinical trials conducted so far, while still relatively small and short in duration, haven’t turned up serious safety signals. The honest caveat is simply that we don’t yet have the large-scale, long-duration safety data that exists for compounds that have been on the market and studied for decades. That’s not a reason for alarm. It’s a reason for reasonable, ordinary caution, the same caution I’d suggest applying to any relatively newer supplement category regardless of how promising the early research looks.

Where the Research Goes From Here

Standing back from all of this, what strikes me most about tributyrin isn’t any single dramatic finding, it’s how coherent the whole story hangs together. You’ve got a plausible, well-understood mechanism rooted in decades of separate butyrate research, a genuine formulation solution to a real pharmacokinetic problem, and a growing, if still modest, body of human trial data that consistently points in a reassuring, if not yet definitive, direction.

If I had to boil this down to something actionable, it would be this: tributyrin is a reasonable, evidence-informed option worth discussing with a healthcare provider if you have a specific reason to want more direct, efficient colonic butyrate delivery, whether that’s due to a diet history low in fermentable fiber, a period of antibiotic use, or simply a documented interest in gut barrier support that goes beyond what fiber alone has accomplished for you. It is not, and shouldn’t be marketed or understood as, a replacement for the more foundational, better-established work of eating enough fiber, supporting a diverse gut microbiome, and managing the everyday stressors that also influence gut barrier function in ways no supplement addresses directly.

What I’d genuinely like to see next is larger, longer, placebo-controlled human trials specifically targeting digestive symptoms and barrier function as primary outcomes, rather than secondary or exploratory measures buried inside studies designed around other conditions entirely. Until that data exists, the honest position is cautious optimism: a compound with real mechanistic logic behind it, early human safety data that doesn’t raise alarm bells, and a research trajectory that’s clearly accelerating rather than stalling out. That’s a good place for a compound to be. It’s just not the same as having all the answers yet, and I’d rather tell you that plainly than oversell something still very much in progress.

Article Sources

At AncientHerbsWisdom, our content relies on reputable sources, including peer-reviewed studies, to substantiate the information presented in our articles. Our primary objective is to ensure our content is thoroughly fact-checked, maintaining a commitment to accuracy, reliability, and trustworthiness.

1. Bohnen, J. L. B., Roytman, S., Wigstrom, T. P., Vangel, R. K., Barr, J. E., Carli, G., Parks, S. M., Mittal, H., Martino, C., Kanel, P., Albin, R. L., & Bohnen, N. I. (2025). Dietary tributyrin supplementation in Parkinson’s disease: An open-label target engagement study. Neurotherapeutics, 23(1), e00791. https://doi.org/10.1016/j.neurot.2025.e00791 
2. Duysburgh, C., Verstrepen, L., Van Meulebroek, L., & Marzorati, M. (2025). Tributyrin (CoreBiome®) enhances butyrate levels and modulates the gut microbiota, barrier function, and immune response in vitro. Frontiers in Nutrition, 12, 1712993. https://doi.org/10.3389/fnut.2025.1712993 
3. Edelman, M. J., Bauer, K., Khanwani, S., Tait, N., Trepel, J., Karp, J., Nemieboka, N., Chung, E. J., & Van Echo, D. (2003). Clinical and pharmacologic study of tributyrin: An oral butyrate prodrug. Cancer Chemotherapy and Pharmacology, 51(5), 439-444. https://doi.org/10.1007/s00280-003-0580-5 
4. Korenblik, V., Korosi, A., Brul, S., Bockting, C. L. H., Nieuwdorp, M., & Lok, A. (2025). Feasibility and acceptability of 8-week oral tributyrin supplementation as add on to antidepressant medication in patients with depression: A study protocol paper for a pilot, randomised controlled trial. BMJ Open, 15, e108423. https://doi.org/10.1136/bmjopen-2025-108423 
5. Liu, H., Wang, J., He, T., Becker, S., Zhang, G., Li, D., & Ma, X. (2018). Butyrate: A double-edged sword for health? Advances in Nutrition, 9(1), 21-29. https://doi.org/10.1093/advances/nmx009 
6. Nogal, A., Valdes, A. M., & Menni, C. (2021). The role of short-chain fatty acids in the interplay between diet, gut microbiota, and host energy metabolism. Gut Microbes, 13(1), 1897212. https://doi.org/10.1080/19490976.2021.1897212 
7. Silva, Y. P., Bernardi, A., & Frozza, R. L. (2020). The role of short-chain fatty acids from gut microbiota in gut-brain communication. Frontiers in Endocrinology, 11, 25. https://doi.org/10.3389/fendo.2020.00025 
8. Smith, M., Lelah, M., Goggans, M., Tunio, S., Naqib, A., Burton-Freeman, B., & Edirisinghe, I. (2024). Investigation of the tolerability and potential health benefits of a novel butyrate generating supplement in a pilot human study. Nutrition and Healthy Aging, 9, 133-144. https://doi.org/10.3233/NHA-240005 
9. Wang, R. X., Lee, J. S., Campbell, E. L., & Colgan, S. P. (2020). Microbiota-derived butyrate dynamically regulates intestinal homeostasis through regulation of actin-associated protein synaptopodin. Proceedings of the National Academy of Sciences, 117(21), 11648-11657. https://doi.org/10.1073/pnas.1917597117 
10. Xiong, R. G., Zhou, D. D., Wu, S. X., Huang, S. Y., Saimaiti, A., Yang, Z. J., Shang, A., Zhao, C. N., Gan, R. Y., & Li, H. B. (2022). Health benefits and side effects of short-chain fatty acids. Foods, 11(18), 2863. https://doi.org/10.3390/foods11182863 
11. Zhu, L., Sha, L., Li, K., Wang, Z., Wang, T., Li, Y., Liu, P., Dong, X., Dong, Y., Zhang, X., & Wang, H. (2022). Dietary flaxseed oil rich in omega-3 suppresses severity of type 2 diabetes mellitus via anti-inflammation and modulating gut microbiota in rats. Lipids in Health and Disease, 19(1), 20. https://doi.org/10.1186/s12944-020-1197-x 
12. Chelakkot, C., Ghim, J., & Ryu, S. H. (2018). Mechanisms regulating intestinal barrier integrity and its pathological implications. Experimental & Molecular Medicine, 50(8), 1-9. https://doi.org/10.1038/s12276-018-0126-x