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SIBO Breath Test (Gold Standard) - At-Home Test Kit

SIBO Breath Test (Gold Standard) - At-Home Test Kit

Regular price $197.00 USD
Regular price $297.00 USD Sale price $197.00 USD
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Expert Result Consultation Available
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  • ✅ In Stock - ships within 24 Hours
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  • Express Analysis - Results in 24-72 hours (after receiving at Lab)
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SIBO Breath Test (At-Home Test Kit) is the Gold Standard to detect SIBO.

This SIBO Breath Test (Small Intestine Bacterial Overgrowth) t-Home test measures Hydrogen (H2) and Methane (CH4) to detect SIBO, and Carbon Dioxide (CO2) as a quality control measure.

  • Specimen: Breath
  • Non-invasive: Breath testing to evaluate Small Intestine Bacterial Overgrowth (SIBO)
  • 3-Hour Test: 10 evacuated glass test tubes (for Breath Collection)
  • Availability: All 50 States
  • Prescription (RX): Not necessary
  • FREE BONUS with every order: Symptoms Diary - eBook (Value US $27.00)
  • Included: Free Shipping and Return Label
  • Optional: Result Consultation for your SIBO Breath Test



SIBO Breath Test - how it works

 Step #1  - Order the Test Online

Order your SIBO breath test in our online shop. You receive the test kit within  2-5 business days. Important: Read the instructions carefully so you know how to prepare.

 Step #2  - Perform The SIBO Breath Test At Home

The SIBO breath test is designed for easy, at-home use.

Here’s how it works: After the baseline measurement, dissolve the glucose supplied with the test kit in water. Then, drink it, and exhale into a test tube every 20 minutes. Repeat 9 times. The test takes 180 minutes or 3 hours total.

By collecting your breath samples in the test tubes, our laboratory can easily measure the levels of hydrogen, methane, and carbon dioxide in your breath.

Important! SIBO is suspected if any of your breath samples contain 20 parts per million (ppm) hydrogen gas or 10 parts per million (ppm) methane gas.

 Step #3  - Send Your SIBO Test To The Lab (FREE)

Fill the package with your test tubes and send the package back to the lab, free of charge. The shipping label is already applied.

 Step #4  - Get Detailed, Personalized Results Within 24-72 Hours

Once your SIBO breath test arrives at the lab, you receive detailed results within 24-72 hours. If your package arrives on the weekend, it might take longer.


Recommended! Get Your Results Explained by A SIBO Expert

All SIBO tests we receive are evaluated using the latest scientific methods. If your test comes back, you have the option to discuss your results with one of our qualified SIBO experts.

Do you need support in interpreting the test results and guidance with the next steps? 

No problem! When ordering your test, click the "With Result Consultation" button. This provides one-on-one time with a qualified digestive health expert. You will also receive personalized treatment recommendations to manage the symptoms of SIBO/IBS.



Small Intestine Bacterial Overgrowth (SIBO) affects up to 80% of people with irritable bowel syndrome.

Common SIBO symptoms include:

  • Abdominal pain
  • Bloating
  • Gas
  • Constipation
  • Abdominal cramps
  • Diarrhea
  • Indigestion (heartburn)
  • Nausea

As the problem gets worse, many people also experience fatigue, unexplained weight loss, and anemia.

Get Diagnosed with An SIBO Breath Test

Our non-invasive home SIBO breath test (SIBO H2 Hydrogen Methane Test) was developed by renowned IBS and SIBO experts. It is the best and most convenient way to determine whether SIBO can be suspected without having to see a doctor.

How the SIBO Test Works

Our SIBO breath test measures the hydrogen and methane levels in your breath. This information can confirm bacterial overgrowth in your small intestine, providing invaluable insights and actionable steps toward getting relief from SIBO.  

When you receive your breath test, follow the provided instructions. Once you’re finished collecting your breath samples, send them back to the lab with the prepaid envelope included inside the test package. We provide most test results within one to three business days (24-72 hours).

Request a Result Consultation (recommended)

If you’d like to go over your test results with a qualified IFDW SIBO expert, click the “With Result Consultation” button when ordering. This option provides a one-on-one telephone or video appointment with an IDFW SIBO expert.

During the consultation, the your IDFW SIBO expert explains your test results and provides personalized recommendations to help you make informed decisions about your gut health.


Order the SIBO breath test if you have ...

  • Persistent or recurring digestive problems (e.g., diarrhea, abdominal cramps, and nausea)
  • Been diagnosed with irritable bowel syndrome (IBS). Up to 80% of IBS patients have SIBO. 
  • Unexplained digestive issues that affect your quality of life
  • Food intolerances (e.g., celiac disease or lactose intolerance) which can make SIBO worse


Important Reasons to Test Yourself for SIBO

SIBO is a very common condition, but it presents similar symptoms to other gastrointestinal problems. Therefore, it’s crucial to rule out other potential issues, like inflammatory bowel disease (IBD) and celiac disease.  

Our SIBO breath test uses a proven diagnostic method to confirm bacterial imbalances. It also provides a starting point for improved digestive health. Proper treatment can restore the balance of the bacteria in your small intestine and significantly improve your quality of life.



For an additional fee, you can purchase a professional results consultation with an IFDW SIBO expert. This consultation includes:

  • Comprehensive Test Interpretation: So you clearly understand the test results.
  • Correlation with Medical History: We explain how SIBO can affect your health based on the other medical conditions you’re living with.
  • Customized Analysis: SIBO affects everyone differently. Understanding the variations in methane and hydrogen type can make the condition easier to manage.
  • Digestible Insights: SIBO is a complex condition. We simplify your test results by translating intricate medical terminology into easy-to-understand language.
  • Personalized Next Steps: Our gut health experts create personalized recommendations based on your test results that can relieve symptoms and improve quality of life.

This evidence-based advice can restore your gut balance, prevent uncomfortable side effects, and boost your general health.

    SIBO Breath Test FAQ

    SIBO Breath Test - Frequently Asked Questions

    What is SIBO?

    SIBO (Small Intestinal Bacterial Overgrowth) is a condition where excessive bacteria grow in the small intestine, leading to symptoms such as bloating, pain, and malabsorption.

    What are the symptoms of SIBO?

    SIBO symptoms include bloating, abdominal pain, diarrhea, constipation, gas, and in some cases, vitamin and mineral deficiencies due to malabsorption.

    Find more details in this article about SIBO symptoms.

    How is SIBO diagnosed?

    SIBO is most often diagnosed with a SIBO Breath Test that measures hydrogen and methane levels in the breath after drinking a sugar solution. High levels indicate bacterial overgrowth in the small intestine.

    This SIBO Breath Test can easily be done at home.

    What does a SIBO Breath Test measure?

    A SIBO breath test measures the levels of hydrogen and methane gases in your breath, which are produced when bacteria in the small intestine ferment sugars.

    Is the test painful or invasive?

    No need to worry!

    The SIBO Breath Test is non-invasive and painless: Breath samples are collected in glass tubes and sent to our laboratory (at no additional cost to you).

    How do I prepare for a SIBO breath test?

    Thats' pretty easy! Preparation involves fasting for at least 24 hours prior to the test, avoiding certain medications and foods, and not smoking or chewing gum on the day of the test.

    All necessary preparations are described in detail in the test instructions supplied with the SIBO Test Kit.

    How is the test conducted?

    You take the SIBO Breath Test at home.

    You take a baseline measurement, then drink a glucose-water solution and take breath samples at regular 20-minute intervals (for a total of 3 hours).

    Then you send your breath samples to our laboratory (at no extra cost to you).

    How long does it take to get my results?

    Typically, SIBO Breath Test results are available within 24-72 hours after samples arrive at our lab. Please also allow 3-5 days for shipping to the lab.

    After that you'll receive your results in our IFDW Client portal which is a safe way to deal with personal health information.

    Can I have someone do a review or consultation of my SIBO test results with me?

    Sure, no problem! You can buy the SIBO Breath Test together with a so-called Result Consultation. Simply select the "With Result Consultation" option above before purchasing. ´

    After you have taken the test and the results are available, simply make an appointment with one of our experienced dieticians.

    You can then discuss the results in detail with them and discuss further actions.

    I ordered a SIBO Breath Test for my husband/wife/child/relative, how do I make sure the test results have their name on them? 

    No worries! You can easily have the test delivered to the address of your choice by selecting a different delivery address during checkout.

    In the instructions that come with the test, you'll be able to fill out a form with personal information about the person who will be taking the test.

    Do you have any other questions that are not listed here?

    No problem, we will be happy to help you!

    Please feel free to contact our Customer Service at or on our contact page.

    • 3-hour SIBO Breath Test

      Accurate & Simple

      Our 3-hour SIBO Breath Test is more accurate than the 90-minute and 120-minute tests most other labs offer.

      Our SIBO test ships directly to your home and is easy to use.

    • Exhale and Breathing head icon

      Convenient & Non-Invasive

      Take the SIBO breath test at home on your schedule. No blood draws or stool samples are needed.

      Simply breathe into the collection test tubes and send them to the lab once you’re done.

    • Icon with the word Easy on it

      Multiple measurements & Fast Results

      The SIBO Breath Test measures both hydrogen and methane. Most other tests measure hydrogen only.

      All Tests are analyzed upon arrival at our lab in within 24-72 hours. Most of our clients receive their results within 48 hours of submission.