OMED Health Breath Analyzer
Clinical grade hydrogen and methane breath testing from the comfort of your home.
Unlock Your Gut Health With Breath Testing
The OMED Health Breath Analyzer measures hydrogen and methane in your breath. These gases are produced by gut microbes and when they ferment food. By tracking these gases over time, you can see how your gut responds to different foods and uncover imbalances such as IMO and SIBO that may be driving digestive symptoms.
- Clinical-grade performance as accurate as hospital breath testing.
- Approved medical device regulated for use in both the UK and USA.
- Measures hydrogen and methane directly in parts per million.
Discover
Personalised Gut Health Reports
OMED Health Reports turn your breath tests into clear, structured insights. Each report combines your hydrogen and methane results with logged foods, symptoms and lifestyle factors, building a personalized picture of your gut health over time. These reports make it easy to spot patterns, identify potential triggers, track progress, and response to treatments.
- Clear results – instant reports of hydrogen and methane levels.
- Food and drink tracking – see how your diet affects your gut.
- Symptom links – connect bloating, pain or bowel changes with test results.

Doctor led diagnosis of IMO
High methane on a breath test is often a sign of Intestinal Methanogen Overgrowth (IMO). Unlike hydrogen, which is made by many gut bacteria, methane is produced by a different group of microbes called methanogens. When these microbes overgrow, they can slow down movement in the gut, which can lead to constipation and discomfort.
The OMED Health Breath Analyzer measures methane, making it easy to spot IMO. Because the device can be used as often as needed, it also supports treatment monitoring, helping you see how methane levels changes with antibiotics, antimicrobials, diet or other therapies.
An OMED Health doctor will review your results and explain your diagnosis at no cost, so you always feel supported and know what steps to take next.
How is my gut health changing?
Which foods affect my digestion?
What is causing constipation / bloating?
Is this treatment making a difference?
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Unlimited breath testing with your own personal device
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REAL STORIES
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How does it work?
The OMED Health Breath Analyzer uses metal-oxide semiconductor (MOS) sensors to detect hydrogen and methane in your breath. A diffusion membrane filters out interfering compounds, and a moisture-blocking mesh protects the sensors. Your breath readings go via Bluetooth into the app, where they’re recorded alongside your food, symptoms, and lifestyle data.
What do the results mean?
The OMED Health Breath Analyzer measures hydrogen (H₂) and methane (CH₄) gases produced when gut microbes ferment food.
High hydrogen levels after eating certain foods, especially carbohydrates such as bread, pasta, beans, or high FODMAP foods, can suggest that these foods are being fermented earlier than normal, which may contribute to bloating, pain, or diarrhoea.
High methane levels are usually linked to intestinal methanogen overgrowth (IMO), which can slow gut movement and contribute to constipation. Clinical guidelines typically consider methane levels above 10 ppm at any point during testing as indicative of significant methanogen activity.
The app helps you track gas levels alongside meals and symptoms so you and your healthcare professional can spot patterns and plan dietary or treatment changes.
Who can use it?
The OMED Health Breath Analyzer is intended for adults (18+) who are experiencing digestive symptoms or those curious about how their gut responds to foods. It’s a medical-grade device, not just a wellness gadget, so users can benefit from:
- Continuous, at-home tracking of hydrogen and methane levels to reveal patterns over time
- Correlation of breath results with diet, symptoms, and lifestyle via the app
- Identification of conditions like small intestinal bacterial overgrowth (SIBO) or intestinal methanogen overgrowth (IMO)
- Monitoring response to treatment or dietary changes
- Having results reviewed by OMED doctors
Can I share my results with my own doctor or dietician?
Yes. You can export or share your data with your own doctor who can interpret it alongside your symptoms and help guide next steps.
How often can I use the device?
The device is reusable. You can repeat tests whenever needed, for example, to check different foods, or to monitor progress during treatment. The device lifetime is two years.
Is the OMED Health Breath Analyzer a medical device?
Is the device accurate?
Yes. The OMED Health Breath Analyzer has published performance data showing a mean absolute error of ~3.8 ppm for hydrogen and ~2.3 ppm for methane comparable with hospital breath testing. This accurate methane measurement is critical and is historically one of the most challenging gases to measure reliably at home. Read more here.
Where can I see technical specifications and performance data?
We are committed to openness and transparency. All key performance specifications, including published accuracy data for hydrogen and methane and validation against hospital grade clinical breath testing, are provided below and in data presented at international scientific conferences.
Technical Specification:

For published research, visit our insights hub.
How does the device stay accurate if there are other gases in breath (like alcohol or VOCs)?
The OMED Health Breath Analyzer uses a proprietary filter stack and sensor system to keep readings reliable even in real-world conditions. A diffusion membrane blocks many background volatile compounds, a PTFE moisture barrier prevents water droplets from affecting the sensors, and our advanced Al model separates hydrogen and methane from interfering gases. The device was also stress-tested with hundreds of synthetic and real world breath scenarios (varying humidity, temperature and background VOCs) to ensure robust, accurate performance outside the clinic.
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