Collection Instructions


Collection Method


Kit Requirements

Stool Test Kit

Turn Around Time

3-5 Business Days Turnaround times are estimates


Sample Report


Faecal anti-tissue transglutaminase IgA antibodies indicate a reaction of the immune system to the tissue transglutaminase enzyme produced by the body when gluten is ingested, leading to an autoimmune reaction that may destroy the intestinal lining or other tissues in the body.

Stool analysis for antibodies against gluten-related antigens may be a more sensitive assessment to gluten/immune reactions than serum antibody assessments. Positive faecal anti-tissue transglutaminase IgA (produced in situ by the intestinal mucosal) result from a specific immune reaction to gluten in the digestive tract, and may be present in the absence of similar antibodies in serum, especially in the absence of the typical coeliac disease-related damage to the intestinal tract (i.e., villous atrophy). This represents the immune/inflammatory response to gluten that may be ongoing without any apparent damage to the gut or without any elevated serum antibody titres. Intestinal gluten antibody assessments may be a more accurate method of detecting gluten intolerance reactions, and may reflect such immune reaction before, or in the absence of any traditional serum evaluations.


  • Transglutaminase IgA - gluten sensitivity marker

Test Method

FEIA (Fluorescence immunoassay)

Common Conditions

  • Gastrointestinal and Digestive Health
    • Bloating
  • Other Health Conditions
    • Chronic Fatigue, Fibromyalgia
    • Diarrhoea
    • Flatulence
    • Food sensitivities
    • Indigestion
    • Irritable Bowel Syndrome
  • Skin and Dermatological Health
    • Eczema, Psoriasis

Notice To Patients

NutriPATH practices in the usual practitioner-referral system for pathology laboratories. Patients are highly recommended to seek the supervision and guidance of a qualified healthcare practitioner for the interpretation of any lab results and associated information. NutriPATH can offer assistance in locating a suitable practitioner.

Find a Practitioner

How it works

Step 1

Order test

Your referring practitioner will place this order via their online portal.

Step 2

Collect Samples

A test kit will be dispatched to you and you can conveniently collect your sample in the comfort of your home.

Step 3

Return Samples

Return samples for analysis via the provided courier packaging.

Patient resources

Our highly skilled and qualified team have created a service where patients can easily gain access to a wide range of pathology testing options.

View all

Practitioner resources

As a leader in the industry, practitioners are able to trust in our ability to provide them with the technology they need to adequately test their clients and patients.

View all