[slider id="5"]

Who We Are

Headquartered in beautiful New South Wales, Australia, SIBOtest specialises in diagnostic testing for functional digestive disorders. We are Australia's leader in SIBO breath testing.



Dr. Nirala Jacobi, ND

Founder & Medical Director



Dr. Nirala Jacobi, BHSc, ND (USA) is a naturopathic doctor and internationally recognized expert on small intestinal bacterial overgrowth (SIBO). She is the creator of the SIBO Biphasic Diet, a resource that has helped tens of thousands of SIBO sufferers around the world. Dr. Jacobi is the host of The SIBO Doctor Podcast and the founder of The SIBO Doctor, an online educational platform that includes the SIBO Mastery Program for practitioners. Dr. Jacobi brings more than two decades of clinical and analytical experience to SIBO Test as our founder and medical director.

SIBO Test Quality Assurance

At SIBO Test, our highest priority is to provide reliable testing options to accurately diagnose and guide clinical decisions for functional digestive disorders. Our extensive quality control measures include carbon dioxide measurements to assure an acceptable alveolar air sample and frequent calibration of testing machines. All of our SIBO breath tests use only genuine QuinTron testing kits and evaluate samples with QuinTron BreathTracker technology—the gold standard for SIBO testing.


Why Choose SIBOTest?

Test Comparison at a glance

  SIBOTest Lab 1 Lab 2
One test kit for SIBO yes no no
Closed sample collection device yes yes yes
10 samples in 3 hours yes yes no
Glucose test kit yes yes no
Control CO2 yes ? ?
24-48 hour turnaround for results yes no no
Naturopathic support staff yes no no
order a sibo test

Order a Test


Order a breath test directly online without practitioner pre-approval. Sales tax may apply.

order a sibo test

Pre-Approve a Test


Log in to pre-approve patient tests, view results, and access exclusive practitioner resources.