Your gut influences
Everything.
3pm crashes.
Bathroom anxiety.
Same problem.
Your microbiome is specific. Your probiotic formula should be, too.
That 3pm exhaustion? Same source as your bathroom anxiety
-imbalanced gut bacteria producing inflammatory compounds. Your 40s are being written by your microbiome right now.
Colonization resistance means 99% of probiotic strains die in your gut within 48 hours. You need 50 billion CFUs minimum to establish new colonies. Most brands ship 5 billion. You've been underdosing by 10x.
We test your bacteria, deliver therapeutic doses, then test again to prove colonization. No other company verifies their probiotics actually survived. We show you the data.
Getting Back to Normal

What 71% of people experience by week 16 (according to published research)

"I eat lunch and still have energy at 3pm"
Published research shows digestive comfort supports sustained energy levels. You're not crashing at your desk anymore. You stopped needing that emergency sweet snack. The food coma that hijacked your afternoon - gone.

You have the energy to volunteer for afternoon meetings now. That heavy, "I want to lie down" feeling after eating vanishes. Studies link digestive optimization to nutrient absorption and energy maintenance.1

Typically emerges by weeks 8-10. No special effort required.*
"I'm not the person who crashes anymore"
Clinical research demonstrates 63% of participants achieve significant symptom improvement by week 8.2 You're still contributing in 4pm meetings. Actually hearing what people say after 2pm. That person who lived on coffee and willpower - that's not you now.

You stopped declining lunch invitations. Your partner notices you're really, actually present for evening conversations. Published studies confirm sustained digestive comfort throughout the day.2

Typically weeks 6-12. Happens while you're living, not trying.*
"Mornings don't require negotiation anymore"
Meta-analysis shows personalized probiotics achieve 44% response rate versus 22% for generic formulations, that's a 2x difference.3 You wake up and just... start your day. No bathroom mapping. Morning is just morning again.

You're scheduling early meetings without panic or worries. Your family stopped tiptoeing around you before 10am. Research confirms improved morning digestive comfort.3

Builds progressively weeks 10-16. Nothing you need to do.*
"I'm not the first one sick anymore"
Research confirms 70% of immune cells reside in the gut.4 The office cold makes rounds - you keep working. Your kids bring home everything - you're still standing. Published studies demonstrate probiotic support for immune functions.5

You stopped hoarding sick days. Travel doesn't automatically mean travel recovery time. Clinical evidence links gut health to immune system support.5

Strengthens naturally by weeks 12-16. Building protection naturally.*
"I forgot I was someone with 'gut issues'"
Research shows 71% of participants maintain improvements at 16 weeks and beyond.1 You're not managing anymore. You're forgetting. Forgetting which foods were "dangerous." Forgetting your bathroom strategies. (Although you never forget diet is critical, and to listen to advice from your medical professionals).

Friends stop asking "can you eat there?" Your emergency kit gathers dust. Published studies demonstrate sustained probiotic benefits with continued use.6

This deepens over months. Supporting long-term digestive wellness.*
Olive green and pink background with smooth curves for personalized probiotics and gut health testing information.
Gut health test graph showing personalized probiotics outperform generic probiotics for gut colonization success.
Digestive symptom reduction graph showing personalized probiotics efficacy over 16 weeks for gut health.
Custom probiotics for gut health testing and bloating support with personalized solutions.
Line graph showing energy increase with custom probiotics and gut health test for personalized probiotics.
Custom probiotics improve gut health with a gut health test for best probiotic for bloating relief.
Microbiome diversity index graph shows improvement with custom probiotics and gut health test results.
Research References & Clinical Data Sources

*The following peer-reviewed studies support the claims made throughout this page. Click here to go to our full citation portal.*
‍
1. Ishaque SM, et al. A randomized placebo-controlled clinical trial of a multi-strain probiotic formulation in the management of diarrhea-predominant irritable bowel syndrome. *BMC Gastroenterol.* 2018;18:83
2. Mullish BH, et al. A double-blind, randomized, placebo-controlled study assessing the impact of probiotic supplementation on the symptoms of irritable bowel syndrome in females. *Neurogastroenterol Motil.* 2024;36:e14751
3. Ford AC, et al. Efficacy of Probiotics in Irritable Bowel Syndrome: Systematic Review and Meta-analysis. *Gastroenterology.* 2023
4. Vighi G, et al. Allergy and the gastrointestinal system. *Clin Exp Immunol.* 2008;153(Suppl 1):3-6
5. King S, et al. Effectiveness of probiotics on the duration of illness in healthy children and adults who develop common acute respiratory infectious conditions. *Br J Nutr.* 2014;112(1):41-54
6. Zmora N, et al. Personalized gut mucosal colonization resistance to empiric probiotics is associated with unique host and microbiome features. *Cell.* 2018;174(6):1388-1405

How it works
You poop in a cup. We map your microbiome, build a personalized formula, and retest every 90 days to see what changed.
‍
Scientists map every bacterium, use a supercomputer to build a virtual copy of your gut, run millions of simulations, then compound probiotics engineered to actually work inside you. 

Retests are included every 90 days and if your testing shows no colonization, you get all your money back. With each retest our probiotic gets better and better fitted to your gut.
Custom probiotics for gut health test, personalized probiotics for bloating relief and digestive wellness solutions.
TEST. PERSONALIZE. RETEST.

Your gut changes. Your plan should keep up.

Start with a microbiome test, personalize your probiotic formula using your results, then retest at the cadence that fits your life.
Compare plans
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See how it works
See how it works
Step 1: Test
Collect at home. We analyze the microbiome in your sample.
Step 2: Personalize
Your test results inform a probiotic formula selected for you.
Step 3: Retest
Retest on your plan’s cadence and review whether your formula should change.
Most popular

Regular

A structured year-one program with testing included.

$200
/month

Four tests in year one

  • Four microbiome tests in year one
  • Baseline test included
  • Retesting every three months
  • Personalized probiotic formulation
Start Regular

For people who want a clear, evidence-led gut health program with scheduled retesting.

Testing included. Three-month minimum.

White-glove

Executive

High-touch support with genuinely unlimited retesting.

$1,000
/month

Unlimited retesting plus dedicated concierge

  • Unlimited microbiome retesting
  • Dedicated non-clinical concierge
  • Priority test coordination
  • Personalized probiotic formulation
Start Executive

For founders, executives, and families who want rapid iteration and hands-on coordination.

Dedicated non-clinical concierge.

Research program

Neurological Research Program

An application-based observational research program; not a treatment.

$190
/month

Monthly testing for eligible research participants

  • Monthly microbiome testing
  • Application and protocol review required
  • For eligible diagnosed patients only
  • Included probiotic value up to $6,000
Application required

For patients diagnosed with Alzheimer disease, dementia, or Parkinson disease who meet program eligibility criteria.

Not a treatment. Eligibility and protocol review required.

FAQ

Common
questions

How does gutgutgoose work?

We analyze your microbiome from a simple at-home stool test. Then we build a model of your gut and choose probiotic strains that match your gut profile and goals.

Your tailored capsules are compounded in FDA-registered facilities and delivered monthly across the US and AU. Retesting every 90 days improves our model of your gut, helps you understand your health over time, and lets us refine your formula as your gut changes.

How does the AI actually choose my formula?

Your gut has too many strain combinations for guesswork. We use your test data, diet, and goals to model your gut and choose strains most likely to colonize.

Instead, GutGutGoose uses a Hybrid Mechanistic-AI Framework to mathematically solve for your gut.

1. We use your gut test results to see which of 7,302 strains we have modeled are growing in your gut, then we gather data to create a model of your gut that's as true to life as possible - from bacteria, all the way to your diet and habits.
‍
2. We can then use this data to create a model. We then run digital experiments till we select the perfect probiotic combination. We use physics and advanced algorithms to bridge the massive mathematical burden to create simulations of how bacteria compete for resources in your body.
‍
3. We then only compound bacteria mathematically compounded to survive and thrive. This has been shown to be at least 130% more effective than store bought probiotics.

The subscription is $200 USD per month. What exactly am I paying for?

People waste money on store-bought probiotics that do not colonize. You are paying to stop guessing. We test, build, and show you the data. We show you the data.

‍Our cost reflects 3 clinical grade processes.

1. Metagenomic DNA sequencing ($500 value), this is included in your subscription and repeated every 90 days. We analyze 300+ strains in your gut using deep-read technology through US-based partner labs.

2. FDA-registered compounding ($180 value), Your formula is made to order in an FDA-registered facility to rigorous quality standards, not loose supplement rules.

3. Verification every 90 days and model training (first-in-kind technology), We retest every 90 days. As our models train on your gut, they become more and more accurate.

What is the 90 day money back guarantee?

Take GutGutGoose for 90 days. Then we retest. If your strains did not colonize, and you followed the plan, we refund you. You keep your data either way.

When will I feel something?

Everyone is different. The first changes people tend to notice are less bloating, more regular bowel movements, steadier energy, or clearer thinking.

Your initial gut formula is designed to introduce beneficial probiotic strains to your system. Based on your unique gut health environment, some of these bacterial strains may flourish while others may shrink; this is a normal and expected part of personalizing your health solutions. The important and wonderful part of our long-term retesting is that over time and with each new sample, we can refine your probiotic mix. This allows our team to improve your custom probiotics, ensuring that as your gut microbes shift, your formula gets better and more effective at supporting your digestive health and immune system.

You'll be able to track this through the raw and analyzed gut testing data we provide every 90 days!

Can I take with other supplements? What about other medications?

Yes, but interactions can occur. For instance, if you take antibiotics your gut's going to change a lot from what we've modeled. Check the label and speak with your health professional if unsure. We’ll share your ingredient list to make that easier.

What about data privacy?

Your data is encrypted and stored securely with strict US privacy controls. You can share your results with your healthcare team whenever you want.

Test. Build. Retest. See what changed.

Ready to stop guessing?

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