MRT 170 – Mediator Release Test


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Contains: 1 test kit.

Directions are included. Note: Results will only be provided for the tests that you requested (pre-paid) at the time of your order.

Upon your purchase of the MRT® Food & Food Chemical LEAP 170, you will receive an email from the office of Dr. Peterson and a MRT Kit will be shipped to your address within 3 to 5 business days. The MRT Kit will contain information on the specimen (blood) collection and shipping.


Required Information for Ordering

Address entered below must be patients physical address as required by Lab Companies.

MRT 170 Mediator Release Test for Food Sensitivities

What is the Leap MRT Test?

Traditionally, food sensitivities are tested by looking for antibodies to different foods in the blood. To get accurate test results, the person must have consumed enough of the food for a period of several weeks in order to produce enough antibodies for testing. This is ok if you currently eat the foods being tested and you don’t have a compromised immune system (taking steroidal anti-inflammatories, have autoimmune concerns, digestive issues, etc.).

Food sensitivities are also more complex than just antibody production. There are many other inflammatory chemicals the immune system can produce that promote sensitivities. This is where the MRT test comes in. The MRT uses a much different, and more accurate, technique to identify type 3 and type 4 food sensitivities. The test also includes 30 food chemicals and additives to make sure you stay clear of those that impact your health the most.

The MRT results also come with a wallet-size card with your sensitivities on them so you have a quick reference while grocery shopping.

How does the MRT Test Work?

The MRT test works by measuring the volume change of white blood cells when they are exposed to different foods. The more the cells “empty”, the higher the assumed reaction. This is helpful since you don’t have to consume the foods and it can still be mostly accurate with those who have immune challenges.

What’s Being Tested In the MRT 170 Panel:

MRT Test 170 Includes:

  • 140 Food
  • 30 Chemicals/Additives


Almond Cayenne pepper Ginger Navy bean Scallop
Amaranth Celery Goat’s milk Nutmeg Sesame seed
American cheese Chard Grape Olive Shrimp
Apple Cheddar cheese Grapefruit Onion Sole
Apricot Cherry Green bean Oregano Soybean
Asparagus Chicken Green pea Papaya Spelt
Avocado Cinnamon Green pepper Paprika Spinach
Banana Clam Halibut Parsley Strawberry
Barley Cocoa Hazelnut Peach Sunflower seed
Basil Coconut Honey Peanut Sweet potato
Beef Codfish Honeydew Pear Tapioca
Beet Coffee Hops Pecan Tea
Black pepper Coriander seed Kale Pineapple Tilapia
Blueberry Corn Kamut Pinto bean Tomato
Bok choy Cottage cheese Lamb Pistachio Turmeric
Broccoli Cow’s milk Leek Plum Tuna
Brussels sprouts Crab Lemon Pork Turkey
Buckwheat Cranberry Lentil Pumpkin (flesh) Vanilla
Butternut Squash Cucumber Lettuce Quinoa Venison
Cabbage Cumin Lima bean Rainbow trout Walnut
Cane sugar Date Lime Raspberry Watermelon
Cardamom Dill Mango Red kidney bean Wheat
Cantaloupe Egg White Maple syrup Rice White potato
Carob Egg yolk Millet Rooibos tea Whey
Carrot Eggplant Mint Rosemary Yogurt
Cashew Flax seed Mung bean Rye Yeast-bakers/brewers
Catfish Garbanzo bean Mushroom Salmon Zucchini
Cauliflower Garlic Mustard (seed) Scallion


Acetaminophen Aspartame Benzoic acid Caffeine Candida albicans
Capsaicin FD&C Blue #1 FD&C Blue #2 FD&C Green #3 FD&C Red #3
FD&C Red #4 FD&C Red #40 FD&C Yellow #5 FD&C Yellow #6 Fuctose (HFCS)
Ibuprofen Lecithin (soy) MSG Phenylethylamine Polysorbate 80
Potassium nitrate Potassium nitrite Saccharin Salicylic acid Sodium metabisulfite
Sodium sulfite Solanine Sorbic acid Tyramine

See test kit instructionsThis product is not refundable.

Specimen: Blood, Oxford Biomedical Test Kit 

Lab Draw Instructions and Logistics:

Lab Kit Arrival:

Your lab kit will arrive at your house within 7 business days of ordering your lab from the Root Functional Medicine Website. Your lab order requisition form is included with your kit.

Blood Draw

You will simply need to take the kit and your test requisition form with you to have your blood drawn, then your blood sample is put back in the kit, and the kit is shipped out overnight with an included FedEx prepaid shipping label. Some labs will ship the kit for you, and other times you will have to drop it off at a FedEx location yourself.

You can have your blood drawn at any medical blood draw site (phlebotomy lab or mobile phlebotomist) that is NOT contracted solely to Labcorp, Quest, etc. Usually, you can go wherever you normally have your blood drawn, but it is always a good idea to call the lab in advance and ask if they will take an “outside test kit”.

Draw Site Locator: TravaLab | Mobile Blood DrawDraw Site

Turnaround time: 5-7 business days


  • This MRT test is available in the USA (excluding NY State) and Canada only.
  • Samples must be returned to the lab the same day. We suggest getting the draw early in the morning and ship immediately. Canadian customers must arrange return shipping. Return shipping for USA customers is free.
  • Return shipping: Monday-Thursday
  • No minimum age requirement to run the test. If the patient weighs less than 16 lbs, submit at least 2 full tubes to the lab.


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