MRT and LEAP: A More Targeted Approach to Food Sensitivities

Food sensitivities are one of the most common, and often most confusing, pieces of the health puzzle.

Many people notice that certain foods do not sit well with them, but the patterns are not always obvious. Symptoms can be delayed, inconsistent, and show up in ways that do not immediately point back to food.

Bloating, headaches, fatigue, skin issues, brain fog, joint discomfort, and even mood changes can all be connected.

This is where more advanced testing, like MRT and the LEAP protocol, can be helpful.

What Is MRT Testing

MRT stands for Mediator Release Test.

Unlike traditional food sensitivity tests, MRT does not measure antibodies. Instead, it measures the body’s inflammatory response to foods and chemicals.

When your immune system reacts to a food, it can release inflammatory mediators such as cytokines, histamine, and other compounds. These mediators are what drive symptoms.

MRT measures changes in white blood cells when exposed to specific foods and additives. These changes reflect the level of reactivity.

The test I use looks at 176 different foods and chemicals, providing a broad and detailed picture of how your body is responding.

How This Differs From Other Testing

This is where a lot of confusion comes in. There are a few different types of food-related testing, and they are not interchangeable.

IgE Testing

IgE testing looks at true food allergies.

These are immediate reactions that can be severe and, in some cases, life-threatening. Symptoms typically occur quickly after exposure and may include hives, swelling, or difficulty breathing.

This type of testing is important, but it is not designed to identify delayed sensitivities.

IgG Testing

IgG testing is often marketed as food sensitivity testing.

It measures IgG antibodies to different foods. The challenge is that IgG can reflect exposure and tolerance, not necessarily a problematic response.

This is one of the reasons IgG testing is controversial and often leads to overly restrictive or confusing results.

MRT Testing

MRT looks at something different.

It measures the actual inflammatory response, regardless of the pathway.

Instead of focusing on one type of immune marker, it captures the end result, which is the release of inflammatory mediators that drive symptoms.

This gives a more functional picture of how your body is reacting.

Why There Is Controversy

Food sensitivity testing as a whole is often debated, and it is important to understand why.

One of the main concerns is that food sensitivities are not always the root cause.

They are often a downstream effect of underlying issues such as gut dysfunction, increased intestinal permeability, or nervous system dysregulation. I agree with that.

At the same time, if certain foods are actively triggering an inflammatory response, continuing to eat them while trying to heal the gut or regulate the nervous system can make progress slower and more difficult.

A more effective approach is to address both. Reduce exposure to known triggers while also working on the underlying factors that allowed those sensitivities to develop in the first place.

Food Sensitivities Are Not Always Predictable

One of the biggest challenges with food sensitivities is that they are not always obvious.

They are not limited to the usual suspects like gluten or dairy. In practice, I often see reactions to foods that people would never think to remove on their own.

Things like black pepper, green lettuce, or apples. These are foods that would rarely be eliminated in a standard elimination diet, which is why it can feel frustrating when someone is doing everything “right” and still reacting.

Testing helps remove some of that guesswork and brings more clarity to what is actually triggering a response.

Who Benefits From MRT and LEAP

This type of testing can be especially helpful for people who are dealing with ongoing symptoms without clear answers.

This often includes:

• Digestive issues such as bloating, IBS, or irregular bowel movements

• Chronic headaches or migraines

• Skin conditions like eczema or acne

• Fatigue or low energy

• Brain fog or difficulty concentrating

• Joint discomfort

• Mood-related symptoms

It is also useful for individuals who feel like they are reacting to foods but cannot clearly identify patterns on their own.

What Is the LEAP Protocol

LEAP stands for Lifestyle Eating and Performance. It is the protocol used alongside MRT testing.

The goal is not just to remove reactive foods, but to calm the immune system and reduce overall inflammation. The process is structured and phased.

It starts with a limited number of low-reactive foods and gradually expands as the body stabilizes. This helps reduce inflammatory load, improve tolerance over time, and provide clarity around which foods are problematic.

Instead of removing large categories of foods indefinitely, it is a more strategic and guided approach.

How This Connects to Symptoms

One of the most important aspects of MRT and LEAP is how it connects testing to real life symptoms.

When inflammatory mediators are released, they can affect multiple systems in the body.

This is why food sensitivities do not always show up as digestive symptoms.

They can impact:

• The gut, leading to bloating or discomfort

• The brain, contributing to headaches or brain fog

• The skin, triggering flare-ups

• The joints, causing stiffness or discomfort

• Energy levels and overall resilience

In practice, when these triggers are removed and the immune system is given space to calm down, symptoms often improve across multiple systems.

What I See Clinically

In practice, this is often where people start to see meaningful shifts.

Clients who have struggled with chronic bloating begin to feel more comfortable after meals.

• Headaches become less frequent.

• Energy becomes more stable.

• Skin starts to clear.

• Brain fog improves.

Beyond symptom relief, I have also seen measurable changes in things like inflammatory markers, improvements in blood sugar regulation, and fewer immune-related flare-ups over time.

There is also research supporting this approach, particularly in areas like IBS and migraines, where MRT and LEAP guided interventions have shown improvements in symptom severity and quality of life.

A More Targeted Approach

One of the biggest challenges with food sensitivities is the amount of guesswork involved.

Elimination diets can be helpful, but they can also be overwhelming and difficult to sustain without clear direction. MRT and LEAP provide structure.

They allow for a more targeted approach, where decisions are based on how your body is actually responding, rather than broad assumptions.

Working Together

If this is something you are interested in exploring, MRT testing is something I can incorporate into our work together.

I use the 176 food panel to get a comprehensive understanding of how your body is responding, and then guide you through the LEAP protocol in a way that is structured, supportive, and realistic.

The goal is not just to remove foods, but to reduce inflammation, improve symptoms, and create a path forward that feels manageable and personalized to you.

Bringing It Together

Food sensitivities are rarely straightforward. They can be delayed, inconsistent, and show up in ways that are easy to overlook.

MRT and the LEAP protocol offer a way to better understand those patterns and take a more structured approach to addressing them.

Instead of guessing, you are able to work with clearer information and a plan that is designed to support your body more effectively over time.