Limited offer, 10% off ONLY PAY £148.50 results in 3 days, the cheapest and fastest in the UK today. Use code




Photo of a Lactulose SIBO Breath Test

Glucose SIBO Breath Test


This safe and easy to do at home Smart SIBO test kit includes everything you need to be able to investigate whether SIBO is the cause of your current digestive and health problems.

Your test kit will come with full instructions and a link to a video about collecting your breath samples but do let us know if you have any questions when it arrives as we are happy to help.

Results will be returned to you with a full interpretation within 3-4 working days of the lab receiving your samples.

Glucose SIBO Breath Test



Preparation for the test

You will be sent full instructions with your Smart SIBO test kit. To do the test you will need to follow a prep diet for 1 day, or if constipated 2 days before the Smart SIBO test and then you will need to fast overnight before doing the test. Water is allowed whilst fasting. Your instructions include details about which foods you can eat and provide a meal plan as well.

On the day of the test

In the morning you will take a control breath sample and then drink a solution of glucose. You then collect a breath sample every 20 minutes for the next 3 hours. After the last sample has been collected you can then eat and drink as normal.

Returning your samples

The cost of return postage is covered by your fee for the SIBO test and it will arrive with a fully paid for and correctly addressed envelope for you to easily return your samples
Samples need to arrive back at the lab within 7 days of completing the samples.
The vials can be posted by airmail should you be outside the UK.

Getting your results 

Once processed (using the certified Quintron equipment) your results will be plotted on a graph. A rise in either hydrogen, methane or both at inappropriate points on the graph will demonstrate fermentation and the presence of bacterial overgrowth – SIBO.

We send out your results within 3-4 working days of receiving the samples and let you know if your results are positive for hydrogen or methane SIBO. We also send a test interpretation guide which you can share with your GP or health care provider.

We are also happy to refer you to the IBSandSIBOclinics should you want help treating your SIBO or other digestive problems

Additional information

Weight 306 g
Dimensions 17 × 11 × 8.5 cm

Please do not return samples to the laboratories that may arrive after Wednesday 27th March and up to and including Monday 2nd April.

The laboratories are closed from the 28th March – 2nd April for the Easter Holiday.

Limited Offer


10% off ONLY PAY £148.50 the cheapest SIBO test in the UK, results in 3 days, the fastest in the UK.

use code happy2024SIBO