Food Sensitivity Testing

Lisa Johnson answers some of the most common LEAP questions

Are the foods you are eating making you sick?

Many people are suffering from common ailments like chronic migraines, irritable bowels, skin issues, anxiety, or muscle and joint pain—and they’re getting little to no relief from medicine. If this sounds like you, it’s possible that your body is sensitive to certain foods or chemicals in food, and eliminating them may resolve your discomfort. Getting tested for food and chemical sensitivities will take the guesswork out of the equation.

Is food sensitivity the same as food allergies?

Food allergies generally are easier to identify, because your body’s adverse reaction to foods you’re allergic to is immediate—you develop a skin rash, itching, sneezing, or a more serious systemic reaction associated with anaphylaxis, a life-threatening condition. Food allergies involve the immediate immune system, as your body perceives harmless food proteins as a threat.  These reactions are acute and usually more severe.

In contrast, food sensitivities can cause similar symptoms; however, they involve the delayed immune system.  Symptoms are chronic, and never cause anaphylaxis.  Also, while allergy reactions are immediate, the effects of food sensitivities can be delayed by hours or even days.

Food sensitivity is NOT the same thing as a food allergy.

Food sensitivities are more common than allergies and are often overlooked. Would you suspect that the food you ate yesterday caused the headache you have right now?

Diagnosing Food Sensitivities

At Christie, RD, we use the MRT (Mediator Release Test), a blood test, to determine you have an inflammatory reaction to any of 30 food chemicals and 150 different foods. Then, we follow the LEAP (Lifestyle, Eating, And Performance) protocol to develop an individual, tailored elimination diet to treat your unpleasant symptoms.

Conditions Often Associated with Food Sensitivities

  • Migraines and other headaches
  • Irritable Bowel Syndrome (IBS)
  • Heartburn/GERD
  • Fibromyalgia
  • Arthritis
  • Joint and Muscle Pain
  • Fatigue
  • Autism
  • Attention Deficit Disorder (ADD)
  • Inflammation
  • High Blood Pressure
  • High Cholesterol

How LEAP Will Help You Manage Your Symptoms

Lisa Johnson, Christie, RD’s Certified LEAP Therapist, has advanced clinical training in food sensitivities, and food intolerance. She will assess your symptoms and guide you through the food sensitivity testing process if it seems likely food sensitivity is at the root of your symptoms.  Here’s how the process works:

  • Meet with LEAP Therapist Lisa Johnson to determine if food sensitivity testing is a good option for you.
  • Complete bloodwork at a local lab.
  • Attend a follow up appointment with Lisa to discuss results, develop meals and plan menus, learn grocery shopping strategies, and discover options for eating out.

To learn more about food sensitivity testing, contact us.

I was suffering symptoms that test results with my General Physician couldn’t explain such as inflammation, joint pain, stomach pain and edema.  During one consultation session with Lisa Johnson, after taking a symptom survey, she suggested I might be a candidate for a blood test called the MRT and depending on the results, the LEAP diet.   The results of my MRT determined that my body was “reactive” to 20 different foods of the 150 tested. So I began the LEAP program, eliminating those reactive foods from my diet and after only a few days, the swelling was greatly reduced and I began to feel better. At my annual physical, just one month later, my cholesterol test even showed improvement going from a total of 249 the prior year to 205, with triglycerides falling to 84 from the prior year’s 131. I was astounded at how this diet had impacted my body in such as a short amount of time. My gall bladder pain had subsided.  In less than a year on the plan, I lost 43 pounds. But best of all, my energy was back and I wasn’t in pain any longer. I’m a huge believer in this program and highly recommend it! It’s made a huge difference in my life. And I can’t say enough about Lisa Johnson. She was so supportive and encouraging that success was never in question.
-Teresa Owens


I am a nurse practitioner and have been for 19 years.  I try to be knowledgeable about diet and healthy eating.  I started seeing a RD, Lisa Johnson about a year ago to work on some personal goals, mainly eating better, reducing my BP,  Cholesterol and weight loss.  After seeing her for a few times she suggested I have a LEAP blood test to identify  what foods may be causing inflammation in my body.   I was skeptical about this as I had never heard of it.  However, I finally decided to follow her suggestions and had the lab test performed.

I scheduled a follow-up appointment with Lisa, and she reviewed the results and suggested diet changes for me based on the labs.  It was not a easy diet as I had to give up some foods I loved.  However, I stuck through it and have followed the diet for 2 months.  I was able to loose the weight I wanted and was able to stop 3 of my prescription meds.  I had lab tests to check my cholesterol and was amazed at the change!!!  My total dropped from  274 to 184 and my LDL dropped from 184  to  98 .  I had dropped my cholesterol med in half and plan to go off if altogether. I am also hoping to stop my BP medicine as that has also improved.

Lisa was so patient with me and always sent me recipes and other info I requested.  I would never have been able to do this without her expert advice.

Carol Womble, FNP