My career in healthcare started back in the mid 1970’s. I initially trained in nursing working for many years in hospitals in the UK and Ireland. Spent a further three years training in holistic healthcare - treating the root cause as opposed to just treating symptoms (1980-83). Since 1985 I have worked almost exclusively in this specialist area of food intolerance. I worked with many of the best scientists in some of the most prestigious laboratories that specialise in the clinics new IgG antibody test technology.


Fitzwilliam Food Test Clinic is an Irish company and the exclusive representative and supplier of all Cambridge Nutritional Sciences (UK) laboratory test services in Ireland.

In addition to our own clinic, we provide this food intolerance test service for an increasing number of doctors, fertility clinics, nutritionists, and associated healthcare practitioners throughout Ireland.

Fitzwilliam Food Test Clinic was the first to introduce medical-grade, laboratory based, IgG antibody blood tests for food sensitivity testing into Ireland in 1998.

Our laboratory is a subsidiary of Omega Diagnostics Group PLC, based in Cambridgeshire UK.

About Us

Fitzwilliam Food Test Clinic was founded in 1990 by Martin Healy Lic. Ac MBAcC, RPN.

Our tests are used in over 200  Laboratories Internationally to provide a premier testing service for people across the globe.

Cambridge Nutritional Sciences Laboratory

Using a state-of-the-art scientifically proven technique, the laboratory have developed microarray- based assays to identify specific foods that are causing IgG antibody production.

  1. A specialist laboratory in the field of immunodiagnostics

  2. Their management system is ISO9001:2008 and ISO 13485:2003 certified.

  3. They are a member of the British In Vitro Diagnostics Association (BIVDA). Registered no 04201429.

  4. Our test measure all four food specific IgG antibody subtypes i.e. IgG1, IgG2, IgG3 and IgG4

  5. All our tests are CE marked – in compliance with EU regulation for medical devices.


Fitzwilliam Food Test Clinic,

Clifton House,

Lower Fitzwilliam Street,

Dublin 2

Eircode DO2 XT91


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