Neurogastroenterology & GI Physiology

Neurogastroenterology Diagnostics & GI Physiology Services

Specialist diagnostic services for patients, clinicians, and hospitals across the UK.

Founded by Neurogastroenterologist Dr Jafar Jafari
Diagnostic Expertise

Conditions We Diagnose

Specialist-interpreted diagnostic testing for a comprehensive range of gastrointestinal conditions.

SIBO
Small intestinal bacterial overgrowth testing
Helicobacter Pylori
H. pylori infection breath testing
Lactose Intolerance
Hydrogen breath test diagnosis
Fructose Malabsorption
Fructose breath test assessment
IBS / Functional Bloating
Comprehensive motility evaluation
Reflux / GERD
pH monitoring & impedance testing
Motility Disorders
Oesophageal & GI motility studies
Belching Disorders
Supragastric belch assessment
Our Services

Four Pillars of Diagnostic Care

Specialist-interpreted diagnostic testing for a comprehensive range of gastrointestinal conditions.

Specialist Diagnostic Centre

Comprehensive GI physiology testing in our CQC-regulated specialist clinic, with consultant-led interpretation.

Mobile Hospital Testing

On-site GI physiology services delivered directly to NHS and private hospitals with full equipment and staffing.

Clinical Diagnostic Reporting

Specialist interpretation and diagnostic reporting services for referring clinicians and laboratories.

Home Testing - Gut Insights

Clinically validated home breath tests with specialist interpretation, delivered to patients nationwide.

AT-HOME DIAGNOSTIC TESTS

Gut health tests, delivered to your door

Clinically validated breath tests, each reviewed by our specialist team – no clinic visit required.

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)

Detect small intestinal bacterial overgrowth using a glucose substrate.
  • At-home sample collection
  • Results within 36 hours
  • Specialist interpretation included

SIBO + IMO Lactulose Breath Test

Combined SIBO and methane overgrowth screening, lactulose substrate.
  • At-home sample collection
  • Results within 36 hours
  • Specialist interpretation included

SIBO + IMO Glucose Breath Test

Combined SIBO and methane overgrowth screening, glucose substrate.
  • At-home sample collection
  • Results within 36 hours
  • Specialist interpretation included

Lactose Intolerance Home Test

Identify lactose malabsorption through hydrogen breath analysis.
  • At-home sample collection
  • Results within 36 hours
  • Specialist interpretation included

IMO Breath Test (Lactulose)

Diagnose intestinal methanogen overgrowth using a lactulose substrate.
  • At-home sample collection
  • Results within 36 hours
  • Specialist interpretation included

IMO Breath Test (Glucose)

Diagnose intestinal methanogen overgrowth using a glucose substrate.
  • At-home sample collection
  • Results within 36 hours
  • Specialist interpretation included

H. pylori Breath Test

Detect Helicobacter pylori infection linked to gastritis and ulcers.
  • At-home sample collection
  • Results within 3 – 7 days
  • Specialist interpretation included

Fructose Intolerance Home Test

Detect fructose malabsorption via hydrogen breath testing.
  • At-home sample collection
  • Results within 36 hours
  • Specialist interpretation included
HOW IT WORKS

How our at-home tests work

From symptoms to specialist-led diagnosis – clear, structured and clinically validated.
Step 1

Order your kit

Choose your test based on your symptoms and concerns, and we’ll send the kit straight to your home.
Step 2

Test at home

Collect your breath samples at home, following simple instructions.
Step 3

UK lab analysis

Post your samples back for analysis in our accredited UK laboratory.
Step 4

Specialist report

Receive a specialist-interpreted report – a diagnosis, not just data.

Dr Jafar Jafari

Dr Jafar Jafari

Founder & Clinical Director, GI Cognition

HCPC-registered Consultant Clinical Scientist
MD, PhD in Neurogastroenterology

CLINICAL LEADERSHIP

About GI Cognition

At GI Cognition, we believe accurate gastrointestinal diagnosis should be led by genuine specialist expertise, not guesswork. We were founded to close a real gap in access to advanced GI physiology testing across the UK.

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.

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