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Food Sensitivity Testing  (MRT/LEAP)

MRT® is a patented blood test that measures our immune response to 170 foods and chemicals.  Our immune response is provoked by the release of mediators (i.e.histamine, cytokines, prostaglandins, etc.) that may ultimately cause pain and inflammation.

Food and Chemical Sensitivities can play a role in chronic medical conditions


Different Adverse Food Reaction Types:  

  • Type 1 (antibody IgE) is a true food, immediate allergy, noted by an allergist.

  • MRT tests for both Type 3 (antibody IgG, IgA, IgM, etc.) and Type 4 (cell mediated) hypersensitivity reactions. Research has shown that Type 4 (cell mediated) reactions are most likely responsible for IBS (Irritable Bowel Syndrome), Migraines, and a host of other chronic inflammatory conditions. MRT® is an ‘endpoint’ test that provides a high level of accuracy: 94.5% sensitivity and 91.8% specificity.

Non-reactive or safe foods are initially recommended to calm down the immune system, thus reducing or eliminating symptoms.  As symptoms improve, challenging foods are slowly introduced. MRT® eliminates the guesswork of reactive foods, additives and chemicals that provoke symptoms. It is important to adhere to the protocol and food diaries.


MRT Accuracy and Reliability

What is Meant by Leaky Gut

Animation of the MRT® test


Additional Articles:

January 2014 Townsend Letter

MRT Principles and Method

   What Physicians say about MRT

What is LEAP? - Lifestyle, Eating and Performance Plan

Ellen Metzger, RD, CLT is a Certified LEAP Therapist (CLT), and has received advanced clinical training in adverse food reactions, including food allergies, food sensitivities, and food intolerance.  The MRT results are used to incorporate the LEAP©Program (Lifestyle Eating And Performance) – a personalized nutrition plan based on the results of food and chemical sensitivities.

The MRT® Test results are identified on a color-coded spectrum of foods, noted as non-reactive or “safe” (green), moderately active (yellow), and reactive (red). It is this 'red' group of foods that are most likely to cause symptoms of Migraines, Irritable Bowel Syndrome (IBS), Fibromyalgia and/or Joint pain, Eczema/Acne/Psoriasis and other possible inflammatory conditions.

Initial recommendations are to only consume Non-reactive or safe foods, in order to calm down the immune system, thus reducing or eliminating symptoms. Just avoiding the reactive (red) foods does not eliminate all those foods that are not tested. As symptoms improve, the goal is to slowly introduce more challenging foods. The test eliminates the guesswork of those reactive foods, additives and chemicals that provoke symptoms. Adherence to the protocol and accurate food diaries are strongly encouraged.

How do I proceed with MRT Testing?

  1. Call office or complete Contact form to order kit and discuss pricing. MRT® Testing includes: kit, Blood draw (depending on lab), FedEx overnight delivery, test results, 65-page instruction book, a detailed display of food sensitivities, wallet sized reference card.

  2. MRT kit and requisition form is provided at the office or drop shipped to your home.

  3. Blood draw is arranged at a local lab or your preference. Lab preferred: ECHN Glastonbury Wellness Center, 622 Hebron Avenue, Suite 104 B, 860.652.3182, M-F 7:30-noon

  4. You will be contacted when results are in, to set up a Nutrition Counseling session and go over results. These sessions are considered Medical Nutrition Therapy and are covered by most plans. MRT tests for Food Sensitivities are typically NOT covered by insurance (a requested Superbill is provided).

  5. Follow up counseling sessions incorporate more foods as tolerated, modify diet plan, offer recipe suggestions and provide food lists and materials to ensure optimal success.

The goal of testing is to identify and remove offending trigger foods, calm the immune system, and provide symptoms relief.

MRT and the The LEAP Protocol, designed as an anti-inflammatory diet to lower inflammation, solely may not resolve your issues. However, it is one of the tools used, along with additional therapies, to ultimately reduce or eliminate symptoms.MRT and the The LEAP Protocol are designed as an anti-inflammatory diet to lower inflammation.  


Additional Testing


SpectraCell Laboratories  (COMING SOON)

Intracellular micronutrient, Cardio-metabolic, Hormone and additional testings, assess a spectrum of risk factors and biomarkers for optimum wellness. 

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The GI-MAP (GI Microbial Assay Plus) stool test utilizes cutting edge, Quantitative PCR technology to provide a true DNA/PCR based stool test. The GI pathogens include bacteria, parasites and viruses, and measures opportunistic organisms, normal flora, fungi, parasites and antibiotic resistance genes. Additional immunological markers for GI health and function include SIgA, Elastase, Calprotectin and Anti-gliadin testing.