THE GUT-BRAIN DISCONNECT

95% of Your “Calm Hormone” Is Made In Your Gut[1], Not Your Brain

Here’s Why You Stay Anxious & 
How To Fix It In 4-6 Weeks*

Chronic stress damages the vagus nerve — your gut-brain connection[2]. So even though your gut makes 95% of serotonin it can’t reach your brain, leaving you stuck in stress mode.

Bioma Probiotics’ 3-in-1 Anti-Stress formula restores it in 4-6 weeks.

  • Wake up calm instead of on edge before your eyes open*
  • Stop snapping at small things that used to set you off*
  • Fall asleep in 20 minutes, not 2 hours with your mind finally quiet*
  • Get through your day without that constant knot in your stomach*
  • Feel like yourself again, calm steady, in control*
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BENEFITS OF OUR INGREDIENTS ARE RESEARCHED BY

Join 35,000+ Bioma Probiotics Customers Who Went From 
Stressed & Anxious To Calm & In Control

BASED ON 2,437 VERIFIED REVIEWS

Marcus W.
Anxiety had always shown up in my stomach, like on nights before big events, first dates, etc. Now I get fewer symptoms like this, so I’m happy.
Emily S.
After about a month I realized I wasn’t snapping at the little things anymore.
Lena J.
The biggest change for me has been sleep. I don’t toss and turn the same way anymore… I actually wake up rested. That alone makes it worth it…
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THE GUT-BRAIN DISCONNECT

77% of Americans Experience Stress Symptoms Regularly[3],
And it starts in the gut.

Butterflies before a big meeting. Nausea before a difficult conversation. Stomach cramps or sudden bathroom trips after a stressful day.
This is your vagus nerve at work, a direct communication line between your gut and brain[2] that sends “calm” or “stressed” signals constantly.
Think of your gut and brain as two close friends who text back and forth constantly.

When they’re in sync:

  • Your gut makes “calming hormones” (like serotonin and GABA)[4]
  • Those signals travel up the vagus nerve to your brain
  • Your brain gets the message: “We’re safe. We’re okay.”
  • You feel calm, focused, resilient

But when chronic stress hits:

  1. The vagus nerve weakens[2] (like a phone losing signal strength)
  2. Those calming messages can’t get through
  3. Your brain never gets the “all clear” to relax
  4. You stay stuck feeling overwhelmed, even when nothing is actively wrong.

This is called “The Gut-Brain Disconnect.

Your vagus nerve is a 10-foot communication highway connecting your gut to your brain. It's how your body regulates stress and mood.

When it’s working:

  • Your gut produces 95% of your body's serotonin[1]
  • Signals travel up the vagus nerve to your brain
  • Your brain gets the message: "We're safe, we're calm"
  • You feel resilient and bounce back from stress quickly

When chronic stress weakens it (low vagal tone):

  1. Heightened stress reactivity[5] 
  2. Increased risk of tension and low mood
  3. Poor stress recovery
  4. Brain never receives the “all clear” to relax

Your gut is producing serotonin and GABA (gamma-aminobutyric acid) all day long[1], but if the vagal tone is low, those calm signals never reach your brain.

Modern life creates a perfect storm that damages both the vagus nerve and the bacteria that produce calming neurotransmitters:

Chronic Stress Overload
77% of Americans report experiencing regular stress symptoms[3]. Chronic stress releases cortisol, which damages gut lining and reduces vagal tone.[7]

Dying Gut Bacteria
Modern diet, antibiotics, and stress kill beneficial bacteria that produce short-chain fatty acids, the compounds that trigger serotonin production[8].

Inflammation Blocks Signals
Chronic inflammation physically blocks the vagus nerve's ability to transmit signals[2], like static on a phone line.

The data backs this up: Mental health diagnoses jumped from 31% to 45% in just 4 years, with stress-related issues among the top reported[9].

It’s a vicious cycle you can’t escape without addressing the root cause:

  1. Stress damages your vagus nerve
  2. Your gut can’t send calm signals
  3. Your brain stays in stress mode
  4. More stress damages your gut further
  5. The cycle repeats.


You’re trapped because:

  • Gut bacteria that make calming hormones are depleted
  • Vagus nerve can’t transmit signals effectively
  • Brain never gets the “all clear” to relax
  • Every day without fixing it, the trap gets tighter

Most don’t address the biological gut-brain communication pathway.

  1. Meditation & Breathing Exercises
    What they do: Temporarily stimulate vagus nerve activity.[10]
    Why they fail: If your gut bacteria aren’t producing GABA and serotonin (because they’re depleted), no amount of breathing creates neurotransmitters that don’t exist. 
    Plus: You can’t meditate 24/7. Once you stop, low vagal tone returns.
  2. Magnesium, Ashwagandha & L-Theanine
    What they do: Work directly on brain chemistry to force temporary relaxation.
    Why they fail: They bypass the gut-brain axis entirely. They don’t restore your gut’s serotonin production or improve vagal tone. Effects wear off 4-6 hours, and your body develops tolerance.
  3. Generic Probiotics
    What they do: Add random bacteria for “general gut health.”
    Why they fail: Most don’t contain the specific, clinically-proven strains that produce GABA, boost serotonin, or support vagus nerve function.
    Plus: Most die in stomach acid before reaching your gut.[11]

None address the root cause: depleted neurotransmitter-producing bacteria + reduced vagal tone = broken gut-brain communication.

95% of serotonin (your "calm hormone") is made in your gut, not your brain.

But chronic stress damages the three systems needed to produce it:

  1. Your gut lining can't absorb nutrients properly
  2. Your beneficial bacteria stop producing serotonin signals
  3. Your vagus nerve can't send calm messages to your brain

    Bioma Probiotics’ 3-in-1 formula fixes all three.

    The 3-Step Restoration System

STEP 1: Prepare Your Gut to Absorb What It Needs

TriBiom™ Tributyrin (350mg) - Postbiotic

Strengthens your intestinal barrier so you can absorb tryptophan[12] (the building block your body converts into serotonin).

Without a healthy gut lining, you can eat all the right foods and still not produce enough serotonin.

STEP 2: Restore Calm-Producing Bacteria

Vagus Nerve Probiotic Blend (12 Billion CFU)

These are specific strains probiotics that produce GABA and serotonin, backed by trials showing significant improvements in stress response:

Lactiplantibacillus plantarum Lp815 [13]
→ Produces GABA (your brain's natural calming neurotransmitter
→ 68% of participants showed improved emotional balance at 6 weeks

Lacticaseibacillus rhamnosus HN001 [14]
→ Supports emotional balance and positive mood
→ Clinical trial of 423 women showed improved emotional wellness scores

Bifidobacterium longum BI-05 [15]
→ Survives stomach acid and adheres to intestinal lining
→ Supports digestive health and regular bowel movement
→ Part of the B. longum species associated with gut-brain health

These strains produce short-chain fatty acids that signal your gut cells to make more serotonin[8].

STEP 3: Feed Your Good Bacteria

Chicory Root Inulin (250mg) - Prebiotic

Keeps beneficial bacteria thriving and amplifies serotonin production[16], ensuring calm signals keep flowing.

The Result: Your Gut-Brain Highway Reopens

Calm signals flow through the vagus nerve to your brain, regulating mood, supporting emotional balance, and helping you feel more centered.

Unlike stress supplements that mask symptoms or random probiotics with no mental health research, Bioma Probiotics target the entire serotonin production pathway helping deliver real results in 4-6 weeks.

What Happens When You Restore Your Gut-Brain Connection From The Ground Up

Here’s exactly what to expect when you start Bioma Anti-Stress Probiotics.

Initial Calm Signals

Days 1-3 (48-72 Hours)

What's happening: Gut barrier repair begins, inflammation decreases, probiotic colonization starts

What you'll notice:

  • Your stomach feels calmer, less reactive to stress*
  • You take naturally deeper breaths*
  • That tight chest feeling starts easing*
Emotional Balance Emerging

Weeks 1-2

What's happening: Good bacteria multiply, GABA production begins, vagus nerve signaling improves

What you'll notice:

  • Wake up without that heavy dread feeling*
  • Small annoyances don’t trigger you the same way*
  • Racing thoughts at bedtime start to slow down*
  • Less bloating and digestive discomfort*
Full Gut-Brain Reset

Months 1-2

What's happening: Gut barrier fully repaired, serotonin production optimized, microbiome rebalance, stress hormone regulation improves

What you'll notice:

  • Fall asleep faster without mental spiraling*
  • You don’t rehearse conversation in your head anymore*
  • Digestion noticeably better, less stress-triggered gut issues*
  • Your baseline shifts from tense to steady*
  • People comment you seem calmer, more present*
Deep Emotional Resilience

Months 3-4

What's happening: Vagus nerve tone strengthens, HPA axis rebalancing, peak gut-brain communication, stress resilience peaks

What you'll notice:

  • Stressful situations don’t make you spiral*
  • You bounce back from stress instead of ruminating*
  • Consistent calm energy throughout the day*
  • Better sleep quality, wake up rested*
  • Mental clarity and focus improve*
Peak Performance & Lasting Calm

Months 5-6+

What's happening: Self-sustaining microbiome, lasting vagus nerve strength, optimized neurotransmitter production, long-term stress resilience

What you'll notice:

  • Calm becomes your baseline, not tension*
  • Your gut and brain work together seamlessly*
  • You feel like yourself again, steady and centered*
  • Handle unexpected stress with ease*
  • Overall mood and vitality boost*
  • Friends say you look more relaxed and healthy*
  • Forgot what constant worry feels like*

Why Choose a 6-Month Supply?

Months 1-2

Fix the problem

Months 3-4

Optimize system

Months 5-6

Lock in transformation

“This isn’t just a supplement, it’s getting my life back. I didn’t realize how much stress was running me until I felt what calm actually feels like.”

Sarah M., 6+ Months

What’s Inside Your Bioma Probiotics
Anti-Stress Bottle

Clinically-proven strains. Pharmaceutical-grade quality. Complete transparency.

Ingredients
  • Every ingredient is backed by published research on gut-brain axis function:

  • Prebiotic - Chicory Root Inulin (250mg)

    Prebiotic - Chicory Root Inulin (250mg)

    Research shows that gut bacteria ferment inulin to produce short-chain fatty acids (SCFAs), which stimulate serotonin production from enterochromaffin cells in the gut[8].

  • Probiotics - Vagus Nerve Blend (12 Billion CFU)

    Probiotics - Vagus Nerve Blend (12 Billion CFU)

    Three strains with published clinical research on gut-brain communication:

    Lactiplantibacillus plantarum Lp815[13]:
    ✓ Clinically proven to produce GABA in humans
    ✓ Statistically significant improvement in stress makers at 4 weeks
    ✓ 68% improved emotional balance at 6 weeks
    ✓ Increased urinary GABA and 5-HIAA (serotonin metabolite) levels

    Lacticaseibacillus rhamnosus HN001[14]:
    ✓ Supports healthy gut microbiome during stress
    ✓ Helps maintain emotional wellness
    ✓ Promotes calm and balance mood

    Bifidobacterium longum BI-05[15]:
    ✓ Survives stomach acid and adheres to intestinal lining
    ✓ Supports digestive health and regular bowel movements
    ✓ Part of the B. longum species associated with gut-brain health

  • Postbiotic - TriBiom™ Tributyrin (350mg)

    Postbiotic - TriBiom™ Tributyrin (350mg)

    Research shows tributyrin supports[12]:

    ✓ Gut barrier integrity (tight junction function)
    ✓ Anti-inflammatory effects via vagus nerve signaling
    ✓ Reduced intestinal inflammation that can interfere with vagal transmission

How to take

Dosage: Take 2 capsules once daily with a full glass of water, ideally in the morning before breakfast.

For best results:
✓ Take at the same time every day (gut microbiome thrives on consistency)
✓ Give it at least 4 weeks
✓ Continue for 2-4 months minimum

Important: Results build over time as your gut microbiome rebalances. This is not  a quick-fix supplement, but a biological restoration process.

Storage: Keep in a cool, dry place. No refrigeration required, strains are shelf-stable and delayed-release capsules protect potency.

Why Delayed-Release Capsules Matter

The challenge with probiotics: Stomach acid kills most bacteria. Studies show that standard probiotic capsules lose 60-90% of bacterial viability during gastric transit.[17]

Bioma’s solution:

✓ Acid-resistant delayed-release capsules protect bacteria through the acidic stomach environment
✓ pH-dependent release ensures capsules dissolve in the intestines where bacteria need to colonize
✓ Significantly higher survival rate compared to standard capsules, ensuring more live bacteria reach the gut.
✓ Delayed-release technology is considered best practice in probiotic formulation for clinical efficacy

Without delayed-release, you’re paying for bacteria that die before reaching the gut-brain axis.

What Makes Our 3-in-1 Formula Different

Most stress supplements only mask symptoms, and generic probiotics aren't tested for stress response and emotional balance. But if your gut-brain communication is broken, temporary relief won't solve the problem.

Bioma Probiotics’ 3-in-1 system restores calm from the ground up by fixing the root cause:

🛡️ PREPARE - TriBiom™ tributyrin repairs your gut barrier so you can absorb what your brain needs

🦠 RESTORE - 3 clinically-proven strains help produce GABA and serotonin where 95% is made (your gut)

🌱 FEED - Prebiotic inulin keeps good bacteria thriving and serotonin production flowing

Bioma Probiotics target the root cause: disrupted gut-brain communication. Not symptoms, or temporary relief. But biological restoration backed by published clinical trials.

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Bioma Probiotics Anti-Stress vs. Everything Else You’ve Tried

Feature
Targets Gut-Brain Axis
Yes
No
Partial
Published Clinical Trials
Yes
Some Ingredients
Rare
Produces GABA in gut
Yes
No
Usually Not
Supports Vagus Nerve Function
Yes
No
Rarely
Addresses Serotonin Production
Yes
No
Sometimes
Delayed-Release Protection
Yes
N/A
Usually Not
3-in-1 Complete System
Yes
No
Partial At Best
Builds Lasting Results
Yes
Temporary (hours)
Uncertain
Works Automatically
Yes
No
Partial
Addresses Root Cause
Yes
No
Rarely

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We’re so confident Bioma Probiotics will begin restoring your gut-brain connection and help you feel calmer and more balanced that we offer a complete money-back guarantee.

If you don’t notice any improvements within 14 days: less feelings of occasional unease, calmer mood, or better sleep quality, simply contact us for a full refund.

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Anti-Stress Formula, Backed by Science.

Third-Party Tested
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Gluten-Free | Vegan
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Organic Mushrooms
Organic Mushrooms
Manufactured in USA
Manufactured in USA
100% Natural & Non-GMO
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Delayed-Release Capsules
Delayed-Release Capsules
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Frequently Asked Questions

Get answers to common questions about BIOMA

 Most customers notice less bloating and easier bowel movements within the first 48-72 hours. Full gut repair and consistent regularity typically occurs within 2-4 weeks as your gut barrier heals and microbiome rebalances.

Yes. Bioma is formulated with natural, clinically-tested ingredients and is designed for daily, long-term use. It's manufactured in FDA-registered, GMP-certified facilities and is third-party tested for purity and potency. Unlike laxatives, Bioma doesn't create dependency.

Traditional probiotics only add bacteria, most of which die in stomach acid. Bioma uses delayed-release capsules AND repairs your gut barrier FIRST with CoreBiome® postbiotic. This creates a healthy environment where probiotics can actually survive and thrive.

Many of our customers have IBS-C (IBS with constipation), chronic constipation, or other digestive issues. Bioma addresses the root cause, gut barrier dysfunction, which underlies many digestive problems. However, we recommend consulting your doctor if you have severe conditions

We offer a 100% money-back guarantee. If you don't see meaningful improvement within 14 days, simply contact our customer service team for a full refund. No questions asked. We take all the risk so you don't have to.

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References

[1] Terry N, Margolis KG. Serotonergic Mechanisms Regulating the GI Tract: Experimental Evidence and Therapeutic Relevance. Handb Exp Pharmacol. 2017;239:319-342. https://pmc.ncbi.nlm.nih.gov/articles/PMC5526216/ 

[2] Bonaz B, Bazin T, Pellissier S. The Vagus Nerve at the Interface of the Microbiota-Gut-Brain Axis. Front Neurosci. 2018 Feb 7;12:49. https://pmc.ncbi.nlm.nih.gov/articles/PMC5808284/
[3] American Psychological Association. Stress in America. Washington, DC: APA; 2007 Oct. https://www.apa.org/news/press/releases/2007/10/stress
[4] Strandwitz P. Neurotransmitter modulation by the gut microbiota. Brain Res. 2018 Aug 15;1693(Pt B):128-133. https://pmc.ncbi.nlm.nih.gov/articles/PMC5808284/
[5] McLaughlin KA, Rith-Najarian L, Dirks MA, Sheridan MA. Low vagal tone magnifies the association between psychosocial stress exposure and internalizing psychopathology in adolescents. J Clin Child Adolesc Psychol. 2015;44(2):314-28. https://pubmed.ncbi.nlm.nih.gov/24156380/
[6] Yunes RA, Poluektova EU, Dyachkova MS, Klimina KM, Kovtun AS, Averina OV, Orlova VS, Danilenko VN. GABA production and structure of gadB/gadC genes in Lactobacillus and Bifidobacterium strains from human microbiota. Anaerobe. 2016 Dec;42:197-204. https://pubmed.ncbi.nlm.nih.gov/27794467
[7] La Torre D, Malachin G, Calapai F, Marziali E, Ienopoli A, Ziccarelli S, Musci G, Mondello C, Cardia L. Psychosocial stress-induced intestinal permeability in healthy subjects. Ann N Y Acad Sci. 2023 Oct;1528(1):99-114. https://pubmed.ncbi.nlm.nih.gov/37842017
[8] Reigstad CS, Salmonson CE, Rainey JF 3rd, Szurszewski JH, Linden DR, Sonnenburg JL, Farrugia G, Kashyap PC. Gut microbes promote colonic serotonin production through an effect of short-chain fatty acids on enterochromaffin cells. FASEB J. 2015 Apr;29(4):1395-403.
 https://pubmed.ncbi.nlm.nih.gov/25550456/
[9] American Psychological Association. Stress in America 2023: A Nation Recovering from Collective Trauma. Washington, DC: APA; 2023 Oct. https://www.apa.org/news/press/releases/stress/2023/collective-trauma-recovery 

[10] Gerritsen RJS, Band GPH. Breath of Life: The Respiratory Vagal Stimulation Model of Contemplative Activity. Front Hum Neurosci. 2018 Oct 9;12:397. https://pmc.ncbi.nlm.nih.gov/articles/PMC6189422/ 

[11] Govender M, Choonara YE, Kumar P, du Toit LC, van Vuuren S, Pillay V. A review of the advancements in probiotic delivery: Conventional vs. non-conventional formulations for intestinal flora supplementation. AAPS PharmSciTech. 2014 Feb;15(1):29-43. https://pmc.ncbi.nlm.nih.gov/articles/PMC5808284/
[12] Duysburgh C, Verstrepen L, Van Meulebroek L, Marzorati M. Tributyrin (CoreBiome®) enhances butyrate levels and modulates the gut microbiota, barrier function, and immune response in vitro. Front Nutr. 2025;12:1712993. https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2025.1712993/abstract 

[13] Grant AD, Erfe MCB, Delebecque CJ, Keller D, Zimmerman NP, Oliver PL, Youssef B, Moos J, Luna V, Craft N. Lactiplantibacillus plantarum Lp815 decreases anxiety in people with mild to moderate anxiety: a direct-to-consumer, randomised, double-blind, placebo-controlled study. Benef Microbes. 2025 Apr 24;16(5):521-532. https://pubmed.ncbi.nlm.nih.gov/40312029/
[14] Slykerman RF, Hood F, Wickens K, Thompson JMD, Barthow C, Murphy R, Kang J, Rowden J, Stone P, Crane J, Stanley T, Abels P, Purdie G, Maude R, Mitchell EA; Probiotic in Pregnancy Study Group. Effect of Lactobacillus rhamnosus HN001 in Pregnancy on Postpartum Symptoms of Depression and Anxiety: A Randomised Double-blind Placebo-controlled Trial. EBioMedicine. 2017 Oct;24:159-165. https://pubmed.ncbi.nlm.nih.gov/28943228/
[15] Yao S, Zhao Z, Wang W, Liu X. Bifidobacterium Longum: Protection against Inflammatory Bowel Disease. J Immunol Res. 2021 Jul 22;2021:8030297. https://pubmed.ncbi.nlm.nih.gov/34337079
[16] Szala-Rycaj J, Suska K, Piekarski A, Wróbel A, Matysiak J, Kaczmarek E, Posmyk MM. The Influence of Topinambur and Inulin Preventive Supplementation on Microbiota, Anxious Behavior, Cognitive Functions and Neurogenesis in Mice Exposed to the Chronic Unpredictable Mild Stress. Nutrients. 2023 Apr 22;15(9):2009. https://pubmed.ncbi.nlm.nih.gov/37432210/ 
[17] Govaert M, De Weirdt R, Poeker SA, Eeltink V, Van de Wiele T. Survival of Probiotic Bacterial Cells in the Upper Gastrointestinal Tract: A Comparison of Four Commercially Available Formulations. Nutrients. 2024 Aug 21;16(16):2791. https://pubmed.ncbi.nlm.nih.gov/39203927/