What is the MRT?

Need to Know: MRT Food Sensitivity Testing.

If you’ve ever wondered why you feel bloated, foggy, achy, or just plain “off” after eating — but can’t quite put your finger on the cause — food sensitivities might be the missing piece.

MRT (Mediator Release Test) food sensitivity testing is one of the best tools we have to figure out which foods or food additives are quietly fueling symptoms and chronic health problems. Let’s break it down in plain English: what it is, who it helps, and how it’s different from other food tests.

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Who Might Benefit from MRT?

Food sensitivities don’t always show up as obvious stomach issues. They can sneak into many parts of your health, showing up as:

• Skin problems (eczema, hives, rashes, acne)

• Asthma or breathing difficulties

• Mood or focus struggles (ADD/ADHD, irritability)

• Brain fog or trouble concentrating

• Reflux, bloating, IBS, or other digestive issues

• Leaky gut

• Fatigue or “crash and burn” energy

• Achy joints or arthritis

• Migraines, cluster headaches, or sinus pressure

• Stubborn weight that won’t budge

• Chronic inflammation or autoimmune flares

Sound familiar? You’re not alone. Many people deal with these symptoms for years without realizing food reactions are at the root. And the truth is, there’s no way to know for sure which foods are causing issues unless you test.

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Why Symptoms Get Missed

Here’s the problem: food sensitivities are different from food allergies or intolerances. Allergies (like peanut or shellfish) usually cause immediate, sometimes dangerous reactions. Intolerances (like lactose intolerance) happen when you can’t digest something properly.

Sensitivities, though? They’re trickier. They cause your immune system to release inflammatory chemicals (called “mediators”), and this reaction can be delayed by up to 72 hours after eating the food. That means something you ate on Monday could be the reason you’re foggy or in pain on Wednesday.

This is also why simply taking medication doesn’t solve the problem. Pills may mask the symptoms, but they don’t remove the trigger.

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What Exactly is the MRT Test?

MRT is a simple blood test that looks at how your immune system responds to 140 different foods and 30 food chemicals.

Here’s how it works:

• The test measures changes in your white blood cells when exposed to different foods or chemicals.

• It then shows whether each food is highly reactive (red), moderately reactive (yellow), or low/non-reactive (green).

• This gives you a personalized map of which foods are fueling inflammation — and which ones are safest for your body.

Think of it like a traffic light system for your diet. Red foods = stop. Yellow = proceed with caution. Green = go ahead and enjoy.

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Why MRT is Different from Other Tests

A lot of food sensitivity tests only look at one type of immune response (IgG antibodies). The problem is, that only covers about 25% of food reactions.

MRT goes further. It measures multiple pathways of immune activation — including both Type 3 and Type 4 reactions — giving a more complete picture. Peer-reviewed research has shown MRT to be one of the most accurate food sensitivity blood tests available.

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Why It Matters

Because food reactions can be delayed or dose-dependent (meaning you might only react if you eat too much of it), the “problem foods” are often healthy staples you’d never suspect — like salmon, spinach, blueberries, or chicken.

That’s why MRT is so powerful. It doesn’t just point to the obvious culprits; it can reveal hidden triggers that are keeping you inflamed, tired, and unwell.

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Conditions Where MRT Really Shines

While anyone struggling with chronic, unexplained symptoms could benefit, MRT testing is especially helpful for people dealing with:

• IBS (diarrhea, cramping, gut pain)

• Migraines and chronic headaches

• Fibromyalgia or body-wide pain

• Fatigue and low energy

• Muscle aches

• Eczema, dermatitis, and other skin flare-ups

The Takeaway

MRT testing takes the guessing game out of food sensitivities. Instead of wondering if your favorite “healthy” food is secretly making you sick, you’ll get a clear, science-backed map of what your body can and can’t tolerate.

With those results, I can build a personalized food plan that calms inflammation, restores balance, and gives you a real jumpstart on healing. I utilize this test along side the GI map which allows the body the ability to heal quicker.