Measure, don't guess

Specialist lab tests

Four laboratories, each offering a different lens on your gut. Tests are used on their own or together, depending on your symptoms, and always because your history points to them.

Our laboratories

Four labs, four lenses

USA

Genova Diagnostics

  • GI Effects
  • SIBO testing
  • Coeliac profile

USA

Cyrex Labs

  • Blood–brain barrier permeability
  • Intestinal permeability
  • Irritable bowel / SIBO profile

USA

Mosaic Diagnostics

  • Organic acids testing
  • Food sensitivities and gut imbalance
  • Yeast and mould testing

London

The Doctors Laboratory

  • A wide blood chemistry catalogue
  • Panels chosen case by case
  • Confirmed at your consultation

Flagship panels

The tests we reach for most

Chosen because your history points to them, never as a blanket screen.

Genova Diagnostics · Stool

GI Effects Stool Profile

Digestion, inflammation and the balance of the microbiome.

Helpful for

  • Unexplained bloating
  • Changed bowel habits
  • Suspected dysbiosis
Genova Diagnostics · Breath

SIBO Breath Test

Hydrogen and methane produced by bacteria fermenting food in the small intestine.

Helpful for

  • Bloating
  • IBS-type symptoms that haven't responded to standard treatment
Mosaic Diagnostics · Urine

Organic Acids Test

Yeast and bacterial overgrowth, mitochondrial energy, nutrient status and neurotransmitter metabolism.

Helpful for

  • Fatigue
  • Brain fog
  • Mood changes alongside gut symptoms
Genova Diagnostics · Blood

Coeliac Test

Coeliac-related antibodies, to tell coeliac disease apart from non-coeliac gluten sensitivity.

Helpful for

  • Gluten-related symptoms
  • Unexplained bloating or diarrhoea
  • Family history of coeliac disease
Cyrex Labs · Blood

Leaky Gut Test

Intestinal permeability markers and immune reactions to the gut's tight-junction proteins.

Helpful for

  • Systemic inflammation
  • Food sensitivities
  • Chronic gut symptoms with no clear cause

How testing works

From consultation to results

  1. Agree the tests

    At your Discovery Consultation we agree which tests are worth doing, and the cost, before anything is ordered.

  2. Collect at home

    Most kits are sent to your home with clear instructions. Some blood tests need a local draw.

  3. Results come in

    The lab sends results to the clinic, and we prepare them for your Full Consultation.

  4. Understand them

    We explain your results in plain terms and turn them into a plan.

Lab test fees are separate from consultation fees and are agreed with you at the Discovery Consultation.

Test what matters, not everything

Testing is aimed at the systems most likely to be under strain, so every test earns its place.

Book a Discovery Consultation

Free gut health emails

Get regular emails to improve your digestion

Practitioner-written tips on gut health and the gut–brain connection. No spam, no pressure, unsubscribe at any time.