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Pick the option that matches how much guidance you want.
A SIBO lactulose breath test can give useful information about hydrogen and methane gas patterns. You can order online Australia-wide, with optional Clinical Nutritionist interpretation when your results arrive.
Test Report Only
For people who want the lab report and feel confident reviewing the results independently.
- At-home SIBO lactulose breath test kit
- Hydrogen and methane results
- Lab report emailed to you
- Self-guided review
- No practitioner interpretation included
Best for: simple cases where you mainly need access to the test report.
Test + 1:1 Consultation
For people who want their results explained in context by a Clinical Nutritionist.
- At-home SIBO lactulose breath test kit
- Hydrogen and methane results
- Lab report emailed to you
- 60-minute Zoom or phone consultation
- Review alongside symptoms, diet and health history
- Food, lifestyle and supplement guidance where appropriate
Best for: ongoing bloating, constipation, diarrhoea, complex gut symptoms or anyone wanting a clear plan after testing.
A practical gut test with practitioner-led interpretation available.
SIBO testing is not just about receiving a positive or negative result. The gas pattern, timing, symptom picture and broader gut context can all influence what the next steps should look like.
Lactulose breath testing
Designed to assess hydrogen and methane gas changes after lactulose, a non-absorbed sugar used in breath testing.
Helpful for distal small intestine patterns
Lactulose breath testing can provide a broader view across the small intestine compared with tests that focus only on upper portions.
Support beyond the report
With the consultation option, your results are reviewed alongside symptoms, diet, medications, supplements, lifestyle and health goals.
Designed for people with ongoing digestive symptoms or suspected SIBO patterns.
This test may be useful when digestive symptoms keep returning, when bloating feels disproportionate to meals, or when constipation, diarrhoea or abdominal discomfort are part of a longer gut health picture.
It can also be helpful when you want more clarity before starting another gut protocol, antimicrobial plan, probiotic strategy or restrictive diet.
Key SIBO breath test result areas.
The SIBO lactulose breath test focuses on gas patterns produced by bacterial fermentation. These patterns can provide useful context when reviewing digestive symptoms and gut function.
Hydrogen
Hydrogen patterns are commonly reviewed in relation to fermentation activity and diarrhoea-type symptom patterns.
Methane
Methane patterns are often reviewed when constipation, slowed transit or persistent bloating are part of the symptom picture.
Timing
The rise and timing of gas production can provide context about where fermentation may be occurring.
Symptom context
Results are best interpreted alongside your symptoms, food triggers, bowel habits, history and current health plan.
Gut symptoms rarely sit in isolation.
SIBO patterns can overlap with food tolerance, motility, nutrient status, stress, immune activity and the broader microbiome. This is why interpretation matters.
Bloating and bowel patterns
Gas production, transit time and bacterial fermentation may all influence how bloating, constipation or diarrhoea show up day to day.
Fatigue and nutrient demand
Digestive function can influence nutrient intake, absorption and tolerance. This should be reviewed carefully rather than assumed from one result.
Food reactions and protocols
Restrictive diets and supplement protocols can be useful in some cases, but they should be matched to the person and the result pattern.
Why guidance matters after a SIBO result.
A breath test result can be helpful, but it should not be interpreted in isolation. The same result can mean different things depending on your symptoms, bowel habits, previous treatment history, medications, supplements, food tolerance and wider gut health picture.
Personalised interpretation
Review your hydrogen and methane pattern alongside your real symptoms and health history.
Targeted nutrition strategy
Discuss food tolerance, meal patterns, fibre, fermentable carbohydrates and practical dietary adjustments where appropriate.
Supplement guidance where appropriate
Talk through digestive support, probiotics, antimicrobials, motility support or referral considerations if relevant to your situation.
Clear inclusions, with support available if you want help turning results into action.
Your selected option determines whether you receive the report only or the report plus live practitioner interpretation.
- At-home SIBO lactulose breath test kit
- Hydrogen and methane gas measurement
- Clear sample collection instructions
- Breath sample collection completed from home
- Lab report emailed to you
- Australian lab processing via NutriPath
- Optional 60-minute Clinical Nutritionist consultation
- Food, lifestyle and supplement guidance where appropriate
Note: the NutriPath test sheet lists hydrogen and methane, and indicates that a 2-hour or 3-hour collection should be specified where relevant.
A simple at-home breath test process.
The SIBO breath test can be ordered online in Australia, completed from home, returned as instructed, and reviewed according to the support option selected at checkout.
Order
Choose Test Report Only or the Test + 1:1 Consultation option above.
Collect
Complete your breath sample collection from home using the instructions provided in your kit.
Return
Return your samples using the instructions supplied with the test kit.
Interpret
Receive your report, with Clinical Nutritionist interpretation included if you selected the consultation option.
Choose the consultation if you want the most useful next step.
SIBO results can raise practical questions: What does methane mean? Should you change your diet? Are probiotics appropriate? What if symptoms do not match the report? What other testing should you consider?
The 1:1 Consultation gives you time to ask questions and understand your results in the context of your symptoms, diet, supplements, medications, previous gut protocols and health goals.
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“I highly recommend Wellbeing George. The whole process for the testing is really well explained and very thorough. We have had great results from this and the supplements recommended have made massive changes for our health.”
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SIBO Breath Test Australia FAQs
What is a SIBO breath test?
A SIBO breath test is a non-invasive test that measures gases in your breath after drinking a test substrate such as lactulose. The gas pattern can provide insight into hydrogen and methane fermentation activity that may be relevant to small intestinal bacterial overgrowth patterns.
What does this SIBO lactulose test measure?
This test measures hydrogen and methane gas patterns. These are commonly reviewed when assessing SIBO-related digestive patterns such as bloating, gas, abdominal discomfort, constipation or diarrhoea.
Who is this test suitable for?
It may suit people with ongoing bloating, gas, abdominal discomfort, diarrhoea, constipation, nausea, food intolerance patterns, fatigue or suspected gut imbalance. It is also useful for people who want more clarity before starting another gut protocol.
How do I complete the test?
You complete the breath sample collection from home using the instructions included in your kit. You then return the samples according to the kit instructions and receive your report once processing is complete.
How long does the lab take?
The NutriPath SIBO Lactulose information sheet lists a turnaround time of 2 business days. This refers to lab turnaround and does not include shipping, delivery, administration or appointment scheduling time.
Do I need a referral?
You do not need a GP referral to order through Wellbeing George. If you have significant symptoms, unexplained weight loss, blood in stool, severe pain, fever or other concerning symptoms, please seek medical care promptly.
Is this test diagnostic?
This test can provide useful information about breath gas patterns, but results should be interpreted alongside symptoms, health history, medications, supplements and other relevant pathology. It does not replace medical advice from your GP, gastroenterologist or other healthcare provider.
Why choose the consultation option?
The consultation option is recommended if you want help understanding your results and translating them into practical next steps. This is especially helpful if your symptoms are ongoing, complex, or you are already taking supplements or medications.
Ready to get clearer on your gut symptoms?
Order your at-home SIBO breath test online in Australia and choose the level of support that matches how much guidance you want when your results arrive.
Important: This test is not designed to diagnose, treat or cure disease. Results should be interpreted alongside your symptoms, health history, diet, medications, current supplements and other relevant pathology. This information does not replace medical advice from your GP, gastroenterologist or other healthcare provider.