NEW AT SANTÉ

CellTolerance®
Food Intolerance Testing

See how your intestine responds to specific foods, in real time.

Performed by Dr. Faris Murad, a Mayo Clinic-trained interventional gastroenterologist.

Now available in the Chicago area. Proud to be among just 8 U.S. centers offering CellTolerance, including Stanford Health Care.

Book a CellTolerance Consult
Book a CellTolerance Consult
Call Us
Dr. Faris Murad, board-certified, Mayo Clinic-trained physician and founder of Santé
Call Us · (847) 235-0087

Dr. Faris Murad
Founder of Santé Integrated Health & Wellness

Santé is in-network with BCBS of Illinois, Aetna and UnitedHealthcare.
Coverage for CellTolerance® testing varies;
call to check yours.

BLOATED AFTER MEALS? “NORMAL” TEST RESULTS? YOU’RE NOT IMAGINING IT.

Allergy tests check your skin and blood. But many digestive reactions to food happen in your intestinal lining, where those tests often miss them.

CellTolerance® goes straight to the source.

During an upper endoscopy, Dr. Murad tests the foods you suspect, such as wheat, dairy or soy, directly on your intestinal lining. The findings can help Dr. Murad identify possible food-related triggers and develop a personalized plan based on your results.

Illustration of the CellTolerance microscope probe passing through the stomach to view the small intestine lining

Here's how it compares to the tests you may have already tried.

How CellTolerance compares to allergy skin and blood tests, IgG blood tests and elimination diets: where each test looks, what it measures and time to results
Other tests look at your blood or symptoms; CellTolerance looks directly at your gut. Comparison of allergy tests, IgG blood tests, elimination diets and CellTolerance

HOW CELLTOLERANCE® DIFFERS FROM OTHER FOOD TESTS

WHAT DR. MURAD SEES

What Dr. Murad sees during CellTolerance testing: with no reaction, the intestinal lining shows dark, clean gaps; with a reaction, glowing dye leaks between the cells

ONE FOOD AT A TIME.
WATCHED LIVE, AT THE SOURCE.

What Dr. Murad sees during CellTolerance testing: with no reaction, the intestinal lining shows dark, clean gaps; with a reaction, glowing dye leaks between the cells

IS CELLTOLERANCE® TESTING RIGHT FOR YOU?

CellTolerance® may be right for you if:

✓ You have bloating, gas or cramping you link to certain foods.

✓ You've been diagnosed with IBS, or have symptoms that suggest it.

✓ Your allergy or blood tests came back normal or unclear.

✓ Elimination diets haven't given you clear answers.

✓ You want to know whether specific foods are behind your symptoms.

Your consultation with Dr. Murad will confirm whether it's a good fit.

CellTolerance uses the world's smallest flexible microscope to test one food at a time, showing the intestinal lining with no reaction and with a reaction as it happens
CellTolerance uses the world's smallest flexible microscope to test one food at a time, showing the intestinal lining with no reaction and with a reaction as it happens

HOW IT WORKS

LOOK WHERE OTHER TESTS DON'T.

Call Now: (847) 235-0087

Consultations with Dr. Murad in Winnetka.

Book a CellTolerance Consult
Call Now

CellTolerance® is a trademark of Mauna Kea Technologies. The CellTolerance program has not been reviewed or approved by the U.S. FDA. Individual results vary; diagnosis and treatment decisions are made by your physician.

  • Is it an allergy test?
    No. Allergy tests look for reactions like hives and swelling. CellTolerance looks at how your intestinal lining reacts to food.

    Why test the intestine instead of my blood?
    That's where digestive reactions to food happen, and blood and skin tests often miss them.

    Does it hurt?
    No. It's done during an upper endoscopy under light sedation.

    Do I need other tests first?
    Dr. Murad may check for celiac disease or IBD first to rule out other causes.

    What if nothing reacts?
    A lack of observed reaction is useful information too. Dr. Murad will interpret the findings in the context of your symptoms and medical history.

    Is it legitimate?
    It's based on peer-reviewed research, much of it from European academic centers. Dr. Murad will explain what it can and can't tell you.

    Where can I get CellTolerance testing in Illinois?
    Consultations are at Santé in Winnetka, with testing by Dr. Murad at Des Plaines Endoscopy Center.