MRT food-sensitivity testing — used carefully, with a plan.

Identify foods and chemicals that may be driving IBS, inflammation, fatigue or skin symptoms — then use the LEAP protocol to rebuild a wide, sustainable diet.

Call (949) 736-4147

Free 15 minutesno card requiredno PHI required.

Registered dietitian preparing whole foods to identify trigger foods
  • ★★★★★Rated on Google
  • RDRegistered Dietitian
  • MRTCertified practitioner
  • Functional& lab testing
  • CA · TX · NVVirtual care

Written & reviewed by Leila Page, RD — Registered DietitianLast updated June 2026

MRT testing with Leila Page, RD — a clinician who is MRT-certified and trained in the LEAP protocol — pairs the lab result with a structured elimination-and-reintroduction plan. The test result is a starting point, never the plan itself. Used to personalize, never to diagnose or cure.

Food sensitivity testing has earned a mixed reputation — mostly because too many providers hand clients a long list of foods to avoid and call it a plan. That’s not what this is. We use MRT as one structured input, paired with the LEAP protocol, to identify possible triggers and end with a wider diet than you started with.

New to IBS or gut work? Read the full IBS guide

Who this is for

If this sounds like your experience…

  • You have IBS or persistent gut symptoms and suspect specific foods are part of the picture.
  • You have inflammatory symptoms (joint pain, skin flare-ups, headaches, fatigue) that don’t track neatly to anything obvious.
  • You’ve done elimination diets on your own and ended up more restricted, not more clear.
  • PCOS or an autoimmune condition is part of your story and inflammation feels like a driver.
  • You want a structured way to identify possible food triggers — interpreted by a registered dietitian, not a printout.
How I help

How I actually use MRT & LEAP.

01

Trained, credentialed interpretation

I’m MRT-certified and trained in the LEAP protocol. The test result isn’t the plan — the protocol around it is.

02

Structured reintroduction

We don’t just remove foods. The whole point is to reintroduce them carefully, identify your real triggers, and end with a much wider diet than you started with.

03

Connected to your bigger picture

MRT is one tool. We use it when it’s likely to change your plan for IBS, gut healing, PCOS-related inflammation, or unexplained chronic symptoms — and skip it when it isn’t.

04

Functional testing options

When the picture warrants it, we may layer MRT with functional gut testing (e.g. GI-MAP) or hormone panels for a more complete view.

Nutrition counseling is not a substitute for medical care. Individual results vary.

What’s included

What MRT testing with a trained dietitian includes.

  • Free 15-minute discovery call to decide whether testing is the right next step.
  • A deeper intake covering symptoms, history, prior testing and what you’ve already tried.
  • MRT testing for up to ~170+ foods and chemicals, ordered through the certified lab.
  • A personalized LEAP-based plan built from your test results — used to personalize, never to diagnose or cure.
  • Optional layering with functional gut testing (e.g. GI-MAP) or relevant hormone/lab analysis when it will change the plan.
  • Structured follow-ups to reintroduce foods carefully and broaden your diet over time.
Working together

From test to reintroduction.

  1. 01

    Free 15-minute discovery call to decide whether testing fits.

  2. 02

    Test ordered and a personalized LEAP-based plan built around the results.

  3. 03

    Structured follow-ups to reintroduce foods and broaden the diet over time.

MRT-certified and trained in the LEAP protocol — the test is a starting point, the structured reintroduction plan is the work.

5.0 on Google
I started working with Leila right after high school, when my whole routine changed and I realized I needed real help with my nutrition. From the start, she actually listened. She built a plan around my busy life and work schedule instead of handing me some rigid template that was never going to fit. Her focus was on nourishing my body and supporting my metabolism, with attention to my hormone health and my goal of losing some weight along the way. I came away not just with a plan but with a much better understanding of how to take care of myself. If you're in Orange County and looking for a dietitian who meets you where you are, I can't recommend Leila enough.
Kayla Libed
I was looking for a registered dietitian in Orange County and am so lucky to have found Leila. After years of jumping from one fad diet to the next and always feeling like I was failing, she helped me build sustainable habits that actually fit my life. Leila is also incredibly easy to talk to - nutrition can get into some personal, 'TMI' territory, and she made every conversation feel easy and judgment-free. Using a continuous glucose monitor with her was eye-opening too; it showed exactly how my body responded to different foods and took all the guesswork out. I found my body reacts to something in ways I wouldn't have never guessed. I finally feel like I'm living a healthier life instead of chasing the next quick fix. If you're in the OC and looking for a great dietitian, I can't recommend Leila enough!
Rick Chalmers

Want help applying this to your MRT food sensitivity testing journey?

15-minute discovery call. Free, no pressure, no PHI required.

or call (949) 736-4147
Insurance & cost

Many plans cover nutrition counseling.

In-network with Aetna in California, superbills for out-of-network reimbursement, and HSA/FSA accepted. I’ll help you check your benefits in a few minutes.

  • Aetna — in-network (CA)
  • HSA / FSA eligible
  • Superbills for out-of-network
Check coverageVirtual across California, Texas, Nevada.
Online nutrition counseling from a relaxed home environment
FAQ

Food Sensitivity Testing (MRT) — common questions

Is MRT testing covered by insurance?

The lab fee for MRT is typically out-of-pocket and not covered by insurance. The associated nutrition counseling sessions may still be covered if your plan covers medical nutrition therapy — I’m in-network with Aetna in California and provide superbills for other plans.

How much does MRT testing cost?

Lab fees vary by panel and shift with lab pricing. I’ll quote current cost transparently before you commit, on the discovery call or right after, so there are no surprises.

Is this fully virtual — can the test be done from home?

Yes. Sessions are virtual by secure video, and MRT kits can be drawn at a local lab. I see clients across California, Texas and Nevada.

How long does the full LEAP process take?

Most people are in the structured elimination phase for a few weeks, then move into reintroduction over the following weeks to months. Timelines vary based on your symptoms, sensitivities and how the reintroduction goes.

Do I need MRT, or can we start without it?

You don’t need MRT to work together on gut symptoms. Many clients see meaningful change without any functional testing. MRT is a tool we add when it’s likely to genuinely change the plan.

How do we get started?

Book a free 15-minute discovery call from the contact page. We’ll discuss your symptoms and whether MRT is the right next step before anything is ordered.

Related

Related guides & care.

Virtual nutrition counseling — based in Orange County, serving clients across California, Texas & Nevada. Last updated June 2026.

As featured in
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  • OC Family MagazineIntroduce your little one to solid foods

Ready to get to the root of it together?

Book a free 15-minute discovery call. No paperwork, no PHI — just a conversation to see if we're the right fit.

Call (949) 736-4147

Free 15 minutesno card requiredno PHI required.