Trusted by 80,000+ people

Finally, real answers for your gut health

Stop shooting in the dark: Tackle digestive issues, hormonal shifts, inflammation, and performance barriers with science-backed gut health testing. Sampling takes less than 5 minutes.

"I appreciate so much having a targeted plan for me to do for the next four months to help get my gut back on track"
Valerie
"Not only is it nice to see the numbers on the screen, I feel better! I can tell the difference."
Tetyana
"To see my results presented this way is truly so validating and empowering."
Kathleen
"Tiny Health helped me have clarity and mental relief to finally understand what is going on inside of my body."
Briana
"I appreciate so much having a targeted plan for me to do for the next four months to help get my gut back on track"
Valerie
"Not only is it nice to see the numbers on the screen, I feel better! I can tell the difference."
Tetyana
"To see my results presented this way is truly so validating and empowering."
Kathleen
"Tiny Health helped me have clarity and mental relief to finally understand what is going on inside of my body."
Briana
Rated 5 stars
Trusted by 80,000+ people
Trusted by 100,000+ people

Finally, real answers for your health

Science-backed gut testing to help you decode digestive issues, hormonal shifts, inflammation, and performance barriers — so you can take control of your health at the root cause.

"I appreciate so much having a targeted plan for me to do for the next four months to help get my gut back on track"
Valerie
"Not only is it nice to see the numbers on the screen, I feel better! I can tell the difference."
Tetyana
"To see my results presented this way is truly so validating and empowering."
Kathleen
Tiny Health helped me have clarity and mental relief to finally understand what is going on inside of my body.
Briana
"I appreciate so much having a targeted plan for me to do for the next four months to help get my gut back on track"
Valerie
"Not only is it nice to see the numbers on the screen, I feel better! I can tell the difference."
Tetyana
"To see my results presented this way is truly so validating and empowering."
Kathleen
Tiny Health helped me have clarity and mental relief to finally understand what is going on inside of my body.
Briana

Your gut is your body’s internal defense

When your microbial ecosystem is disrupted by toxins introduced by processed foods or antibiotics, your gut barrier can become inflammed and make you vulnerable to illness and chronic conditions.

a diagram of a normal gut
Normal gut
A diagram of a disrupted gut
Disrupted gut
a diagram showing the differences between normal and disrupted gut
We use next gen sequencing to analyze the microbiome and help you course correct
Research shows that intervention can improve symptoms of many common conditions
80% of the immune system lives in the gut. It influences appetite, behavior, nutrition, sleep and more

For the first time, you can measure your body's internal defense via the gut

With our at-home gut and vaginal health test, you’ll get a detailed picture of what’s happening in your gut. Identify potential imbalances, get personalized insights, and make evidence-based lifestyle adjustments to optimize your wellness and longevity.

  • Get to the root cause of symptoms & chronic conditions
  • Track and optimize your gut to extend your lifespan and healthspan
  • Restore your gut after antibiotics, travel or life's disruptions
  • Clear insights to support menopause, metabolism, immunity, and more
  • Backed by science and research
Order now
Free US Shipping   •    HSA/FSA Eligible
  • Get to the root cause of symptoms & chronic conditions
  • Track and optimize your gut to extend your lifespan and healthspan
  • Restore your gut after antibiotics, travel or life's disruptions
  • Clear insights to support menopause, metabolism, immunity, and more
  • Backed by science and research
a person reading a Tiny Health report on their mobile phone.

100+ microbiome health markers with a single test

The Tiny Health Gut Health Test kit, including the product box, a sample collection swab and vial, and a smartphone displaying the results app.
  • Bad Gas
  • Bloating
  • Constipation
  • Chronic Diarrhea
  • Acid Reflux/GERD
  • Celiac Disease
  • Type 1 Diabetes
  • Fitness
  • Type 1 Diabetes
  • IBS gas
  • Sleep
  • Bad Gas
  • Bloating
  • Constipation
  • Chronic Diarrhea
  • Acid Reflux/GERD
  • Celiac Disease
  • Type 1 Diabetes
  • Fitness
  • Type 1 Diabetes
  • IBS gas
  • Sleep
  • Bad Gas
  • Bloating
  • Constipation
  • Chronic Diarrhea
  • Acid Reflux/GERD
  • Celiac Disease
  • Type 1 Diabetes
  • Fitness
  • Type 1 Diabetes
  • IBS gas
  • Sleep
  • IVF preparation
  • Fertility
  • Fertility
  • Antibiotic Recovery
  • Gestational Diabetes
  • Breastfeeding
  • Postpartum
  • Probiotics & supplements
  • Longevity
  • PCOS
  • IVF preparation
  • Fertility
  • Fertility
  • Antibiotic Recovery
  • Gestational Diabetes
  • Breastfeeding
  • Postpartum
  • Probiotics & supplements
  • Longevity
  • PCOS
  • IVF preparation
  • Fertility
  • Fertility
  • Antibiotic Recovery
  • Gestational Diabetes
  • Breastfeeding
  • Postpartum
  • Probiotics & supplements
  • Longevity
  • PCOS
  • Food Anxiety
  • Bloating
  • Brain Fog
  • Anxiety
  • Hormonal Shifts
  • Thyroid Issue
  • Joint Pain
  • Energy
  • Mood
  • Eczema
  • Allergies
  • Biohacking
  • Ketogenic diet
  • Food Anxiety
  • Bloating
  • Brain Fog
  • Anxiety
  • Hormonal Shifts
  • Thyroid Issue
  • Joint Pain
  • Energy
  • Mood
  • Eczema
  • Allergies
  • Biohacking
  • Ketogenic diet
  • Food Anxiety
  • Bloating
  • Brain Fog
  • Anxiety
  • Hormonal Shifts
  • Thyroid Issue
  • Joint Pain
  • Energy
  • Mood
  • Eczema
  • Allergies
  • Biohacking
  • Ketogenic diet

How it works

  • A person's hands holding a small test vial and an applicator swab with a sample on the tip. The photo is taken from a first-person perspective in a cozy living room.

    Take our mess-free test at home

  • A person's hands holding a small, black, honeycomb-textured Tiny Health envelope.

    Send your sample, mailer included

  • A person sitting in a living room, holding a smartphone. The phone screen is visible, showing a health app with the title "Lana's Results" and a score of 63 displayed next to a graph.

    Take action with your report and expert support

  • A person at a kitchen counter uses a laptop for a video call. The screen shows a telehealth session where "tinyhealth" results are being reviewed, with two other participants visible in video windows on the side.

    Resample and thrive with your Tiny+ Membership

Developed by researchers from

Johns Hopkins University
Stanford University
Mayo Clinic
Washington University in St. Louis
Cornell university
Harvard Medical School

Recommended by leading functional health experts

A headshot of Navaz Habib

The Tiny Health Gut Pro Test is the most comprehensive and easy to read test I have used thus far. The clarity and simplicity of the report are simply unmatched, and their rigorous scientific standards allow me to feel very comfortable ordering this test for my clients!

Navaz Habib, DC
Vagus Nerve Doc, The Health Upgrade Podcast
A portrait of Janelle Kleiner, PT, DPT Founder of Kinected Family Wellness

I love working with Tiny Health because they make advanced microbiome testing both accessible and affordable for my patients. Their reports are incredibly thorough and easy to interpret, and the added practitioner support ensures I can create truly personalized and effective care plans. It’s a game changer for gut-focused functional medicine.

Janelle Kleiner, PT, DPT
Founder of Kinected Family Wellness
A headshot of Keegan Ziemba, MD of Tegrity Health

What I find so valuable about shotgun genomics is how it opens up a broader view of the gut—it’s like stepping back and seeing the whole forest, not just a few trees. Since using this method, I’ve been able to get a much clearer sense of how the microbes interact as a community, which has really helped me move away from the usual blanket approach of giving herbal antimicrobials to everyone.

Keegan Ziemba, MD
Tegrity Health
A portrait of Kylie Ivanir from Gut and Hormone Dietitian, Within Nutrition

Most precise testing that I've come across so far.

Kylie Ivanir, MS, RD
Gut and Hormone Dietitian, Within Nutrition

Find your path to better health, starting today

What you’ll get:

  • Easy-to-use gut microbiome test
  • A gut health report with clinically relevant insights and biomarkers
  • Personalized action plan with lifestyle, diet recommendations
  • Tailored evidence-based supplement  protocols based on your gut
  • 30-min functional health coaching session to breakdown results
Order now
Free US Shipping   •    HSA/FSA Eligible
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A gut health test with its results in an application inside of a phone. The results are also displayed as a PDF, and next to the phone and the PDF there is a box containing the test kit implement. A gut health test with its results in an application inside of a phone. The results are also displayed as a PDF, and next to the phone and the PDF there is a box containing the test kit swab and instructions

As seen on

The Washington Post
Entrepreneur
Spectrum News 1
Gray Motherly
CNBC
Vator News
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Fortune Magazine

The most advanced gut test for unmatched visibility into your health

We use shotgun metagenomics to reveal microbial function at the gene level - because what your microbes do matters more than who they are

76%

Of babies increase beneficial species

60%

Of babies improved symptoms after interventions

Tiny Health
16s
qPCR
025,00050,00075,000100,000125,000

Number of detectable microbes

The Tiny Health team has 7 PhDs, 106 scientific publications, 5,875 citations and 5 provisional patents

a woman smiling
A headshot of Dr. Emeran Mayer, MD, a Tiny Health advisor
A headshot of Dr. Elisa Song, MD, a Tiny Health advisor
photography of a man smiling
A headshot of Dr Yuan, a Tiny Health advisor
image of a woman with glasses
A headshot of Noel Mueller

See why over 80,000+ people have trusted us to improve their health

Here’s what they’re saying.

Thank you for helping me with IBS D. I am doing well. Your organization has helped me immensely and given me my life back.
Jill B.
I was diagnosed with health issues at age five that were clearly due to a disrupted gut microbiome. I am 59 now and it has taken me 40 years to get my health back on track by fixing my microbiome and your company makes it very easy for me to track my progress!
Michael S.
Amy was clear and easily understood as she explained the areas where I need support and further evaluation.   Thank you so much for this analysis which I desperately needed!
Lynn T.
My lab results were truly an eye-opening experience. Although the report was provided in daunting details, my consultant was able to guide me through the information.
Lippman T.
A headshot of Brad
I've been getting into gut health over the last couple years and have even taken other test kits. Tiny Health definitely is leading
the space with their knowledge and reporting. I haven't even done the consult yet, which I'm looking forward to. Great work!
Brad W.
The incredibly detailed results provided by the TinyHealth adult gut test have been invaluable to support my recovery! I am SO grateful for this resource and feel empowered to take steps in the right direction. Overall I really loved the experience from start to finish!
Ashley W.
I am very happy and excited to start the healing process.
Maria
It was good to know which issues I needed to work on with suggestions.. comforting to know just where I'm at and how to make things even better..
Diane
I've had to be on antibiotics for 2 surgeries and I thought just eating fermented foods would get me back on track.  I appreciate so much having a targeted plan for me to do for the next four months to help get my gut back on track. Without Tiny Health I was shooting in the dark.
Valerie
Tiny Health has been very helpful in providing insight to my gut health while proving me with ways to help improve it.
Kate
This has already been a life-changing experience. I spent decades trying to get answers through the traditional health care system, which only created more suffering through incorrect (and insulting!) diagnoses like anorexia rather than addressing the gut problems I have experienced since childhood. To see my results presented this way is truly so validating and empowering.
Kathleen
I have been using Tiny Health now for almost two years. Without their help, I was just shooting in the dark, but with the results from my gut and their advice, I was able to go from being in the 1st percentile on my first test, to now being in the 84% percentile (on my third test), which I am very happy about. Not only is it nice to see the numbers on the screen, I feel better! I can tell the difference.
Tetyana
Tiny Health helped me have clarity and mental relief to finally understand what is going on inside of my body. Having an action plan to help me adjust areas that need attention and understanding what my body needs was a HUGE benefit. I loved the personal touch of the consultation call that helped me understand what I should prioritize and how my gut is interacting with different areas.
Briana

Tackling a specific goal?
Here’s how Tiny Health can help

  • An older man with a grey beard and hair practices a lunge pose on a yoga mat in a sunlit room.
    Longevity

    Live healthier, and longer

    Fight sources of inflammation that can lead to chronic conditions and work on your energy and immunity.

  • A smiling woman with shoulder-length grey hair exercises by pulling on the handles of a weight machine.
    Menopause Conditions

    Feel like yourself again

    Rebalance your gut so you can sleep, eat, and move with ease again as you enter your best years.

  • Two women sit together on the grass, happily eating small dessert tarts during an outdoor picnic.
    Digestive issues

    Reset your gut health

    Get real answers and relief against bloating, constipation, and discomfort so you can live with confidence.

Test your gut and transform your health

Stop guessing what your body needs. Our test reveals the right supplements, foods, and lifestyle changes to improve digestion,  immunity, and resilience—so you can finally feel your best.

Order now
Rated 5 stars
Trusted by 80,000+ people
Trusted by 80,000+ people
A woman sitting in a modern kitchen countertop holding an apple.

Frequently asked questions

Why is gut health important? Is testing really worth it?

Emerging microbiome research has shown the importance of gut health to our overall health. The science links 80% of our immune system to the gut. So, taking steps to improve gut health supports lifelong wellness.

There are many tools and strategies to help improve your gut health. These include eating the best foods and taking supplements for gut health, or working with a gut health coach. Yet there is no one-size-fits-all approach to gut health. For example, taking a probiotic for the gut may be beneficial for some individuals. In others, it could do more harm than good. Imagine there’s already high levels of a beneficial microbe in your gut. Taking a probiotic could boost those levels to a point where they are too high, resulting in low diversity in the gut microbiome.

Taking a gut microbiome test is the best way to determine if there are any imbalances in your gut that need course correction. Testing helps educate you on the best actions for your unique microbiome. And you can retest to track if dietary changes and gut health supplements or probiotics are having the intended effect.

How does testing work? What do I have to do?

For our gut test we use a stool test collected with a lab-certified sampling swab from soiled tissue paper

The process is simple and unlike other tests on the market, Tiny Health doesn't require gloves, a spoon-like collection device, or that you handle stool at all, other than on a regular tissue paper.

The sample is then stored in the included container and zippered back and mailed back to us on the prepaid envelope included with your kit.

How solid is the science?

Microbiome health as a field is relatively new compared to medicine in general. However, human microbiome research has grown over the past 10 years and rose exponentially in the past five years as sequencing technology became more affordable.

There are now more researchers looking closely at how the microbiome is related to health and disease. When it comes to the baby microbiome and associations with health or disease, some very clear patterns have emerged. We pull data and reference high-quality research that is reproducible and gives consistent results. This way, you can be confident in the information that we share.

What does a Tiny Health test look for? What is included?

Tiny Health screens for over 120,000 microbes. This includes bacteria, fungi, parasites, viruses, and archaea found in the microbiome. Each microbiome test kit includes a mess-free stool or vaginal swab with instructions. You return your kit in the pre-paid mailer, which goes to our CLIA and CAP certified lab for microbiome sequencing. In 3-4 weeks, you receive a precision report of your results. This includes personal, evidence-based suggestions to improve your gut or vaginal health.

Summary + Expert Highlight
Your summary gives you a bird’s eye view of your gut or vaginal health report. This includes a customized plan prepared by one of our microbiome experts.

The expert highlight guides you through the results. We help you understand what the data means and which actions to take first.

Key Insights
Learn about current imbalances that are important for your specific age. This means a 4-month old gets different metrics from a 12-month old. And a 2-year old gets different metrics than a 40-year old.

Microbiome Breakdown
You receive a comprehensive list of all microbes found in your sample. We categorize them as beneficial, unfriendly, variable, or unknown and provide detailed descriptions of each microbe. You can see how much of each microbe is present, down to a 0.05% abundance level. (No other baby gut test does this!)

Conditions
This section of the report identifies if you have microbiome signatures for certain conditions. These markers could predict an increased risk of developing that condition.

Action Plan
We provide personal, evidence-based suggestions based on your test results and survey responses. Our suggestions may include actual products and brands that we recommend. You'll also receive useful diet, supplement, and lifestyle tips.

Curious? Explore a Sample Report

My doctor has never heard of this type of microbiome testing. Why should I take a test?

Conventional medical providers usually are not trained in microbiome testing and probiotics, since these things aren't currently standard of care in those settings. In addition, many conventionally trained physicians also have limited nutritional training, and diet is one of the most powerful ways you can optimize microbiome health. While conventional medicine can have lots of insight into sick care, it isn't always the best at wellness and prevention. Plus it can take 10-15 years for the medical field to put new academic research into practice!

But that doesn’t mean that it’s something to wait on. Enter Tiny Health.

Our team of leading pediatric scientists and physicians are on the cutting edge of microbiome health. We are prevention and wellness focused. We've developed tests to give families access to this innovative science right now.

Can a gut test help with eczema, allergies, or asthma?

Eczema, allergies, and asthma are inflammatory conditions. Tiny Health microbiome tests help you identify inflammation at its source, your gut. With deep insights into your gut microbes, you can take action and help prevent or reduce inflammation in your body.

Here are two ways caring for your microbiome can help with inflammatory conditions:

1. In our first few years of life, our gut microbes help train our immune system how to behave. Without proper training, our immune system can contribute to long term issues with inflammation (e.g., eczema, allergies, asthma). The goal is to address imbalances early. That way, the immune system has proper education. This may even help prevent inflammatory conditions from developing.

2. At any age, the microbiome can become unbalanced. This may trigger inflammatory symptoms in our bodies. This can weaken the gut lining, cause leakiness or inflammation, and trigger the immune system. It is important to address these imbalances. Better gut health is possible at any age.

Tending to your gut health is beneficial for overall health and wellness. But your gut may not be the only factor contributing to inflammatory conditions. Many families have successfully reduced or eliminated symptoms by testing and taking action. When you use Tiny Health tests, you can rest assured that a team of gut health specialists are here to support your health journey.

Can a microbiome test tell me about lactose, dairy intolerance, or specific food allergies?

No, a gut microbiome test kit cannot detect lactose intolerance or specific food sensitivities.

At Tiny Health, we can help you understand your gut health and how it may contribute to symptoms of these food sensitivities.

Lactose intolerance refers to trouble digesting the milk sugar, lactose. It is different from cow milk protein allergy, which involves an immune response. Cow milk protein allergy is somewhat common in babies. But lactose intolerance is very rare in children under the age of 5 years old.

There are two types of lactose intolerance:

1. Primary lactose intolerance: This is rare in babies and all about genetics. In this case, the body cannot make enough of the enzyme lactase. This is the enzyme that helps break down and digest the lactose milk sugars.Primary lactose intolerance is not caused by gut microbes. But symptoms may improve with helpful bacteria like Streptococcus thermophilus.

2. Secondary lactose intolerance: This is all about damage to the gut lining. Lactose digestion takes place in the small intestine. Damage to the lining of the small intestine can lead to secondary lactose intolerance. Usually this happens in adults, after a long period of gut inflammation.

Gut microbes can cause lactose intolerance if they are causing gut inflammation. Repairing the gut and clearing inflammation can help support lactose digestion.

If you or your child is having issues with a food sensitivity, talk to a healthcare provider. It is important to understand the root cause. Specific food allergies and sensitivities are often determined by a blood test.

However, for children who are reactive to a wide variety of foods, the common cause may be related to an imbalance in the microbiome, and less the individual foods. Inflammation in the gut may damage the gut lining, and gut leakiness may permit dietary triggers to get into the rest of the body, triggering reactions. For some children, healing the gut can reduce their reactivity to foods.

What’s included in Tiny+ Membership?

A Tiny+ Membership includes:

  • 2 Tiny Health Gut Microbiome Tests
  • 1 Functional Health Coaching Session with a dedicated microbiome specialist
  • Exclusive Discounts: Purchase additional gut or vaginal microbiome tests for $169 per kit, and additional coaching sessions for $39/session during your membership
  • Members-only virtual sessions

Note: Only one membership is needed per family. You can access discounted gut or vaginal tests and coaching sessions for your immediate family members.

Can i use my HSA/FSA to pay for Tiny+

Many of our members use their HSA/FSA to pay for clinical fees and tests.

However, we recommend checking with your FSA/HSA company/carrier for information on what details are required or check out our HSA/FSA page

In case there is any additional documentation you need, feel free to reach out to us at customer support, we’re more than happy to help you with the necessary paperwork.

Will you try to push me supplements?

No. We don't even take affiliate revenue from products we recommend because we stand behind the science.