Neurogastroenterology & GI Physiology
Neurogastroenterology Diagnostics & GI Physiology Services
Specialist diagnostic services for patients, clinicians, and hospitals across the UK.
- CQC Regulated
- Hospital-Grade Quality Service
- UK Laboratory
- Specialist Interpreted
Diagnostic Expertise
Conditions We Diagnose
Specialist-interpreted diagnostic testing for a comprehensive range of gastrointestinal conditions.
Our Services
Four Pillars of Diagnostic Care
Specialist-interpreted diagnostic testing for a comprehensive range of gastrointestinal conditions.
Specialist Diagnostic Centre
- London
Comprehensive GI physiology testing in our CQC-regulated specialist clinic, with consultant-led interpretation.
Mobile Hospital Testing
- UK-wide
On-site GI physiology services delivered directly to NHS and private hospitals with full equipment and staffing.
Clinical Diagnostic Reporting
- Remote
Specialist interpretation and diagnostic reporting services for referring clinicians and laboratories.
Home Testing - Gut Insights
- At Home
Clinically validated home breath tests with specialist interpretation, delivered to patients nationwide.
Gut health tests, delivered to your door
SIBO Breath Test (Lactulose)
Detect small intestinal bacterial overgrowth using hydrogen & methane breath analysis.
- At-home sample collection
- Results within 36 hours
- Specialist interpretation included
SIBO Breath Test (Glucose)
- At-home sample collection
- Results within 36 hours
- Specialist interpretation included
SIBO + IMO Lactulose Breath Test
- At-home sample collection
- Results within 36 hours
- Specialist interpretation included
SIBO + IMO Glucose Breath Test
- At-home sample collection
- Results within 36 hours
- Specialist interpretation included
Lactose Intolerance Home Test
- At-home sample collection
- Results within 36 hours
- Specialist interpretation included
IMO Breath Test (Lactulose)
- At-home sample collection
- Results within 36 hours
- Specialist interpretation included
IMO Breath Test (Glucose)
- At-home sample collection
- Results within 36 hours
- Specialist interpretation included
H. pylori Breath Test
- At-home sample collection
- Results within 3 – 7 days
- Specialist interpretation included
Fructose Intolerance Home Test
- At-home sample collection
- Results within 36 hours
- Specialist interpretation included
How our at-home tests work
Order your kit
Test at home
UK lab analysis
Specialist report
Receive a specialist-interpreted report – a diagnosis, not just data.
Dr Jafar Jafari
Founder & Clinical Director, GI Cognition
MD, PhD in Neurogastroenterology
CLINICAL LEADERSHIP
About GI Cognition
GI Cognition is led by Dr Jafar Jafari, MD, PhD, an HCPC-registered Consultant Clinical Scientist in Neurogastroenterology and Upper GI Physiology. His work combines medical training, advanced physiology expertise and research-led interpretation — bringing a rare, rounded perspective to complex reflux, motility and functional gut disorders.
From home breath testing to in-clinic diagnostics and specialist consultations, GI Cognition delivers a clinically rigorous, end-to-end service. Results are typically available within 36 hours and are always reviewed with expert clinical interpretation, not just raw data.
Whether you’re dealing with bloating, IBS, reflux or complex gut-brain interactions, our approach is built on precision, evidence and specialist insight – not generic wellness advice.
CLINICAL EDUCATION



