


Type
Blood Testing
Biomarkers
1
Duration
15 min
Results
21 days
Sample
Stool or blood
What's included
4 deliverables in this treatment
- Collection kit and instructions
- Zonulin quantification
- Laboratory processing
- Doctor consultation on interpretation and barrier-repair options
Measures zonulin, the protein that regulates the tight junctions between intestinal cells — the most direct available marker of intestinal permeability.
About this treatment
The cells lining the intestine are held together by tight junctions that decide what crosses from the gut into the bloodstream. Zonulin is the protein that opens those junctions, and its level is the most direct marker currently available for what is popularly called leaky gut. When permeability rises, partially digested food proteins and bacterial fragments cross into circulation, which is one plausible mechanism linking gut function to systemic…
Good to know
- Marker
- Zonulin
- Question answered
- Is the gut barrier itself compromised?
- Turnaround
- 14–21 days
- Pairs with
- GI-MAP stool analysis
Who is this for?
Bloating with systemic symptoms, food reactions that keep broadening, autoimmune conditions, or unexplained skin problems.
Booking options & clinic offers
Nurse home visits are available across Bangkok for a 600 THB nursing fee and in 23 further provinces for 700–1,500 THB; home bookings start at 07:00. Free cancellation or rescheduling up to 24 hours before an appointment.
Preparation required
Follow the kit instructions for your sample type. Tell the clinic about recent antibiotics, NSAIDs or heavy alcohol use — all can raise permeability temporarily and change how the result should be read.
Panel categories
Biomarkers tested
1Protein that regulates intestinal permeability by affecting tight junctions between intestinal cells.
About the clinic
Reviews, team and credentials
Independent review links and clinic-reported team information.
834 clinic reviews
From independent platforms
Clinical team
Eight clinicians work across the three branches. General practice is led by Dr Phattheera Chauvachata (Dr Aye), Dr Pimsupa Puthipiroj (Dr Pim) and Dr Chorphut Lorchutnopphakhun (Dr Neem), who also runs the metabolic and GLP-1 clinic. Dr Jirapat Suriyachaisawat brings 24 years in general and regenerative medicine, and Dr Chawapon Kidhirunkul 16 years in anti-ageing and regenerative medicine. Mental health is covered…
Clinic-reported credentials
Languages: English, Thai
Treatment highlights
- Collection kit and instructions
- Zonulin quantification
+2 more items in What's included
13,590 THB for the single-marker zonulin assay with a doctor consultation included. Frequently ordered alongside GI-MAP, which covers the microbial side of the same question — ask the clinic about running both from one collection.

