When you buy through our links, we earn a small commission — and that is what funds all the free education here. It never costs you more. Products are not intended to diagnose, treat, cure, or prevent any disease.
What it is
A once-daily drink stick built on a dual prebiotic-and-postbiotic approach: xylooligosaccharides (XOS, a prebiotic fiber that feeds beneficial gut bacteria), a heat-treated postbiotic form of Bifidobacterium animalis subsp. lactis, and a standardized pomegranate extract for polyphenols, plus about 50 mg of caffeine for energy. It is aimed at supporting a healthy gut environment and easing everyday bloating.
Why the evidence supports it
This is one of the few gut products here with a study on the finished formula itself — a four-week, placebo-controlled trial in which the blend was tied to reduced waist circumference from bloating and less day-to-day digestive discomfort. Underneath that, the ingredients are individually researched: XOS has human work showing it shifts gut bacteria toward beneficial species, and the heat-treated postbiotic delivers the beneficial compounds bacteria produce without needing to stay alive. The exact per-ingredient amounts in the proprietary blend are not fully disclosed, so it reads best as evidence-based daily support for the cell's Exchange function — the healthy gut lining where nutrients and signals cross into the body — not a fix for any condition.
What it supports
- Supports a healthy gut environment
- Provides prebiotic fiber that feeds beneficial gut bacteria
- Supports a healthy inflammation response already within normal range
- Complements a fiber-rich, whole-food diet
Which function it supports
Ties to the cell's Exchange function — a healthy gut lining is where nutrients and signals cross into the body, so supporting the gut environment supports that exchange.
Learn the why behind this pillarHow it relates to your cells and mind
Every product here ties back to a specific job your body does. This one touches the functions below — follow either link to see the mechanism in full, then dig into the studies.
What it is made of — and the mechanisms behind it
Each ingredient acts on several of the body's functions. Taken together, this product touches these cell and mind functions — follow any to see the mechanism in full.
The ingredients
Mechanisms drawn from our ingredient knowledge base (4 profiled ingredients). Structure and function only — not a treatment claim.
The science on the ingredients
Beyond the Gut: Unveiling Butyrate's Global Health Impact Through Gut Health and Dysbiosis-Related Conditions: A Narrative ReviewSystematic review2024
Butyrate, a short-chain fatty acid made by gut bacteria fermenting fiber, is the preferred fuel for colon cells and supports gut barrier integrity.
Study authors — PubMed Central (PMC)
Effect of Intensity and Duration of Exercise on Gut Microbiota in Humans: A Systematic ReviewSystematic review2022
How exercise affects gut bacteria composition depends heavily on its intensity and duration, per this systematic review of human studies.
Study authors — PubMed Central (PMC)
Impact of Different Exercise Modalities on the Human Gut MicrobiomeSystematic review2021
Moderate exercise appears to increase beneficial gut bacterial diversity, while very intense exercise may temporarily raise gut permeability.
Study authors — PubMed Central (PMC)
Interplay Between Exercise and Gut Microbiome in the Context of Human Health and PerformanceSystematic review2021
This review summarizes how exercise habits and gut bacteria composition influence each other in humans.
Study authors — PubMed Central (PMC)
Vagotomy and insights into the microbiota-gut-brain axisSystematic review2021
Studies of vagus nerve cutting show the vagus nerve is a key communication pathway between gut microbes and the brain.
Study authors — PubMed
The gut-brain axis: interactions between enteric microbiota, central and enteric nervous systemsSystematic review2015
Gut microbes communicate bidirectionally with the brain through neural, hormonal, and immune pathways.
Carabotti M et al. — Annals of Gastroenterology
Intestinal permeability and its regulation by zonulin: diagnostic and therapeutic implicationsSystematic review2012
Zonulin is the only known human protein that reversibly regulates the tight junctions controlling gut barrier permeability.
Fasano A — Clinical Gastroenterology and Hepatology
Xylooligosaccharide supplementation alters gut bacteria in both healthy and prediabetic adults: a pilot studyEmergingRandomized controlled trial2015
A small pilot trial found xylooligosaccharide supplementation shifted gut bacterial composition in both healthy and prediabetic adults, though the effect and its magnitude differed between the two groups.
Yang J, Summanen PH, Henning SM, et al. — Frontiers in Physiology
Efficacy and Safety of Lactobacillus acidophilus LA85 in Preventing Antibiotic-Associated Diarrhea: A Randomized, Placebo-Controlled StudyRandomized controlled trial2025
A specific Lactobacillus strain reduced the incidence of diarrhea associated with antibiotic use in this randomized trial.
Study authors — PubMed Central (PMC)
Effects of Dietary Fiber Supplementation on Gut Microbiota and Bowel Function in Healthy Adults: A Randomized Controlled TrialRandomized controlled trial2025
Fiber supplementation improved bowel regularity and shifted gut bacteria composition in healthy adults over the trial period.
Study authors — Microorganisms
Swapping White for High-Fibre Bread Increases Faecal Abundance of Short-Chain Fatty Acid-Producing Bacteria and Microbiome Diversity: A Randomized, Controlled, Decentralized TrialRandomized controlled trial2024
A simple swap from white to high-fiber bread increased gut bacterial diversity and short-chain-fatty-acid producing bacteria in a randomized trial.
Study authors — PubMed Central (PMC)
Xylo-oligosaccharides improve functional constipation by targeted enrichment of BifidobacteriumRandomized controlled trial2024
XOS prebiotic supplementation improved constipation scores and enriched beneficial gut bacteria over one month, without reported diarrhea or flatulence.
Yi W et al. — Food Sci Nutr
The Impact of Fermented Milk Products Containing Bifidobacterium longum BB536 on the Gut Environment: A Randomized Double-Blind Placebo-Controlled TrialRandomized controlled trial2024
Fermented milk with the probiotic strain B. longum BB536 shifted gut bacteria composition, raising beneficial Faecalibacterium levels within days.
Study authors — PubMed Central (PMC)
Impact of resistant starch type 3 on fecal microbiota and stool frequency in Thai adults with chronic constipation: randomized clinical trialRandomized controlled trial2024
Resistant starch supplementation increased beneficial short-chain-fatty-acid-producing bacteria and improved stool frequency in adults with chronic constipation.
Study authors — Scientific Reports
Consumption of Solnul Resistant Potato Starch Produces a Prebiotic Effect in a Randomized, Placebo-Controlled Clinical TrialRandomized controlled trial2023
A resistant starch supplement increased beneficial Bifidobacterium and Akkermansia levels compared with placebo in this randomized trial.
Study authors — PubMed Central (PMC)
Resistant Maltodextrin Consumption in a Double-Blind, Randomized, Crossover Clinical Trial Induces Specific Changes in Potentially Beneficial Gut BacteriaRandomized controlled trial2022
A soluble fiber, resistant maltodextrin, shifted gut bacteria toward beneficial species in this crossover trial.
Study authors — PubMed Central (PMC)
Multi-Omic Analyses Reveal Bifidogenic Effect and Metabolomic Shifts in Healthy Human Cohort Supplemented With a Prebiotic Dietary Fiber BlendClinical trial2022
A prebiotic fiber blend increased beneficial Bifidobacterium levels and shifted gut metabolite patterns in healthy adults.
Study authors — Frontiers in Nutrition
Nine weeks of high-intensity indoor cycling training induced changes in the microbiota composition in non-athlete healthy male college studentsClinical trial2021
Nine weeks of high-intensity cycling training shifted gut bacteria composition in previously non-athletic young men.
Study authors — PubMed Central (PMC)
A prospective randomized, double-blind, placebo-controlled, dose-response relationship study to investigate efficacy of fructo-oligosaccharides (FOS) on human gut microfloraRandomized controlled trial2019
Fructo-oligosaccharide prebiotic fiber increased the relative abundance of Bifidobacterium and Lactobacillus in the gut in a dose-dependent manner.
Tandon D, Haque MM, Gote M, Jain M, Bhaduri A, Dubey AK, Mande SS — Scientific Reports
Xylooligosaccharide increases bifidobacteria but not lactobacilli in human gut microbiotaRandomized controlled trial2014
Xylooligosaccharide (XOS) prebiotic fiber, at daily doses of roughly 1.4 to 2.8 grams, selectively increased beneficial Bifidobacteria in human gut microbiota.
Finegold SM et al. — Food Funct
Effect of inulin on the human gut microbiota: stimulation of Bifidobacterium adolescentis and Faecalibacterium prausnitziiRandomized controlled trial2009
Daily inulin fiber intake increased populations of Bifidobacterium adolescentis and Faecalibacterium prausnitzii, both associated with butyrate production in the gut.
Ramirez-Farias C, Slezak K, Fuller Z, Duncan A, Holtrop G, Louis P — British Journal of Nutrition
The role of short-chain fatty acids in the interplay between diet, gut microbiota, and host energy metabolismEstablishedExpert review2013
Short-chain fatty acids made by gut bacteria fermenting fiber, especially butyrate, serve as a major energy substrate for colon cells and influence host glucose and lipid metabolism through defined signaling receptors.
den Besten G, van Eunen K, Groen AK, Venema K, Reijngoud DJ, Bakker BM — Journal of Lipid Research
Mode of action of Akkermansia muciniphila in the intestinal dialogue: role of extracellular proteins, metabolites and cell envelope componentsEmergingExpert review2023
Akkermansia muciniphila colonizes the mucus layer and produces specific proteins and metabolites, including a pili-like protein, proposed to support gut barrier signaling independent of the live bacterium itself.
Segers A, de Vos WM — Microbiome Research Reports
Differential Gut Microbiome Profiles in Long-Distance Endurance Cyclists and RunnersCohort study2024
Endurance cyclists and runners showed distinct gut bacterial profiles compared with each other and with non-athletes.
Study authors — PubMed Central (PMC)
Balanced by design — we show supporting and contradicting findings. Search all studies
No product works in isolation
Every cell function above — Sense, Exchange, Transform, Build, Maintain, Adapt — needs the same broad base of optimal micronutrient levels running underneath it, all the time. Nu Biome is not a stand-alone fix; it is one piece that plugs into that larger system. The foundation comes first, and this supports it.
Stacks well with
Pick your goal — here is what Nu Biome pairs with for each. Nothing works in isolation; these share the same systems.
For Gut Health
For Women's Health
For Mood & Hormones
For Immune
Foundational, or targeted?
Not everything in the shop is meant to be taken forever. Some products here are foundational — a daily nutrient base built for long-term, ongoing use. Others are targeted -- shorter-term support for a specific season, not a lifelong habit. If you are not sure which one this is, that is a fair question to ask us before you buy.
Learn more, on your terms
Do not take our word for it — go read. Each topic below opens a pre-loaded search so you can explore the nutrient, the mechanism, or the device for yourself.
Search the full studies libraryHow to use it
Mix one stick into water once daily and drink. It contains about 50 mg of caffeine, so earlier in the day suits most people better than the evening.
Where to get it
Ready when you are. This link takes you to the official, verified source for this product.
Get Nu BiomeThe studies
See the research behind the science we point to.
Explore studiesThe blog
Plain-language reads on how it all fits together.
Read the blogOptimal nutrients are the definition of longevity
Long-term cell function depends on having what it needs, at the level it needs it, for as long as it needs it. That is the whole thesis behind everything we point you to here.
When you buy through our links, we earn a small commission — and that is what funds all the free education here. It never costs you more. Products are not intended to diagnose, treat, cure, or prevent any disease.
Nu Biome is a once-daily drink stick with xylooligosaccharides (a prebiotic fiber), a heat-treated postbiotic form of Bifidobacterium animalis BPL1, and pomegranate, plus a small amount of caffeine. It is aimed at supporting a healthy gut environment. It fits anyone who wants sensible daily gut support.
Common questions
What does Nu Biome support?+
It supports a healthy gut environment, provides prebiotic fiber that feeds beneficial gut bacteria, supports a healthy inflammation response already within normal range, and complements a fiber-rich, whole-food diet.
How do I take it?+
Mix one stick into water once daily and drink. It contains a small amount of caffeine, so earlier in the day suits most people better than the evening.
What makes it different?+
It feeds the gut with both a prebiotic fiber and a studied postbiotic. The exact amounts in the blend are not fully disclosed, so it is framed as sensible daily gut support, not a fix for anything.