Once you fill in your details, Nordic Laboratories will be in touch with your payment link. If you’ve added an interpretation option, that’s paid here on this page.
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- Nordic Laboratories
- Breath
- Aerodiagnostics Laboratory
SIBO Breath Test
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Glucose
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£171 | |
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Lactulose
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£171 |
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Comprehensive Consultation RECOMMENDED
75-minute consultation, full health history review, and personalised written protocol.
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+£275 | |
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Results Review Consultation
45-minute Zoom consultation, results review, and written recommendations.
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+£175 | |
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Written Interpretation
Written report with personalised recommendations. No consultation included.
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+£95 | |
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Kit Only
Decide on interpretation once your results arrive.
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Interpretation, if added, is paid in the order form. The kit is paid via a separate secure link from the laboratory.
What this test measures
Hydrogen and methane gases in exhaled breath, measured over a timed 3-hour collection to assess small intestinal fermentation patterns.
- Measures hydrogen and methane gases in exhaled breath following ingestion of glucose or lactulose.
- Elevated hydrogen may be associated with hydrogen-dominant SIBO.
- Elevated methane may be associated with intestinal methanogen overgrowth (IMO).
- Glucose is rapidly absorbed, while lactulose passes through the entire small intestine before reaching the colon.
- Breath samples are collected at home over 3 hours following a 12-hour fast.
The SIBO Breath Test measures hydrogen and methane fermentation patterns associated with suspected small intestinal bacterial overgrowth (SIBO) or intestinal methanogen overgrowth (IMO). Results should always be interpreted alongside symptoms, medical history and other clinical findings to help guide further investigation and personalised treatment.
Glucose is rapidly absorbed in the upper small intestine and primarily reflects fermentation occurring in the proximal small bowel. Lactulose is not absorbed and passes through the entire small intestine before reaching the colon, allowing fermentation patterns to be assessed throughout its length.
Not sure which substrate is right for you? Contact me before ordering and I’ll recommend the most appropriate option based on your symptoms and clinical history.
The SIBO Breath Test evaluates hydrogen and methane fermentation patterns, while GI-MAP provides a comprehensive assessment of the gut microbiome, pathogens, digestive markers and intestinal inflammation. Together they offer a broader picture of gastrointestinal health.
The SIBO breath test measures two gases produced by bacterial fermentation in the small intestine, collected at timed intervals over 3 hours. Results should always be interpreted alongside symptoms, medical history and other clinical findings.
The SIBO breath test requires careful preparation beginning 2–4 weeks before your collection date. The collection itself takes 3 hours. Please read the instructions included with your kit carefully before you begin.
Check the collection instructions for your specific substrate for the full preparation protocol. Certain medications and supplements may need to be paused well in advance of testing.
Do not eat or drink anything except plain water for at least 12 hours before starting. Do not eat, smoke or sleep during the collection period itself.
Collect breath samples at timed intervals using the vacuum-sealed tubes provided. Timing is important — follow the instructions carefully throughout.
Return samples using the prepaid packaging provided. Post as soon as possible after completing collection.
The SIBO Breath Test measures hydrogen and methane fermentation patterns associated with suspected small intestinal bacterial overgrowth (SIBO) or intestinal methanogen overgrowth (IMO). It assesses fermentation patterns rather than the gut microbiome itself. For a more comprehensive assessment of gastrointestinal health, consider combining it with the GI-MAP.
Abdominal discomfort
Excessive gas or belching
Constipation
Diarrhoea
Fluctuating bowel habits
Nausea
Fatigue with digestive symptoms
Food reactions or intolerances
Skin symptoms
Headaches or head pressure
Joint discomfort
Unintentional weight changes
Mood changes with digestive symptoms
Suspected SIBO or IMO
The SIBO Breath Test measures hydrogen and methane fermentation patterns within the small intestine. Results should always be interpreted alongside symptoms, medical history and other clinical findings.
For a broader assessment of the gut microbiome, pathogens, digestive markers and intestinal inflammation, consider combining the SIBO Breath Test with the GI-MAP.
If you are unsure which substrate is most appropriate, contact me before ordering and I will recommend the most suitable option based on your symptoms and clinical history.
Results Review Consultation (£175) — a 45-minute Zoom consultation to review your results, answer your questions and discuss the next steps. Written recommendations are included following the consultation.
Comprehensive Consultation (£275) — a 75-minute consultation including a full health history review, symptom assessment and interpretation of your results in the context of your overall health. Includes a personalised written protocol with diet, lifestyle and supplement recommendations where appropriate.
How It Works
1
Fill in your details and select an interpretation option if you’d like one.
2
Regenerus Labs will email you a secure payment link within a few hours.
3
Dispatched directly from the lab within 1–2 working days of payment.
4
Follow the instructions in your kit. Return samples in the prepaid packaging provided.
5
Results arrive in your patient portal within 2–3 weeks. I’ll be in touch if you added interpretation.
