Stomach pain or low blood sugar episodes disrupting your life?

Sucrose intolerance can cause many issues, not the least of which are concerning low blood sugar episodes, heart palpitations, and digestive pain. Now it’s much easier to diagnose with our best-in-class sucrose breath test.

Get a Sucrose Breath Test Today

Sucrose intolerance can look like one of a dozen other digestive disorders, including lactose intolerance or IBS, so it can be tough to diagnose. Our sucrose intolerance test is non-invasive and can help determine whether your gas, bloating, stomach cramps, and anxiety are at least partly due to sucrose intolerance.

Our Sucrose Breath Test Process


Register or order

Schedule your test online and complete a brief registration form. Alternatively, order a test for home use.



This test requires the patient to take nothing by mouth (NPO) for 12 hours, avoidance of certain foods for 24 hours, and no smoking for at least an hour.


Get tested

Commit at least three hours for your test. If you use a sucrose intolerance test at home, make sure to follow the instructions carefully, as it can affect the accuracy of the test.


Get results

Get results the same day for in-office visits or within a day after your test has been received for at-home tests.

Your digestive issues may not be limited to sucrose intolerance even if you test positive. Talk to your care provider about additional testing options.


How to Take the Sucrose Intolerance Test

  • Schedule your test at one of our MA-based testing centers or get an at-home sucrose breath test online at our website.
  • Follow all instructions carefully. Inadequate preparation can result in a false positive or a false negative. The test is a breath test, so it is completely non-invasive.
  • Get results the same day, or send us your home test results for expert analysis. You will receive results within one day from when we receive your sucrose breath test.
  • Take control of your health. You now have what you need to discuss next steps with your physician and take control of your personal health journey.

The AllClear Difference

  • Personalized tests when you need them
  • State of the art, best in class testing options
  • Accurate, lab-verified testing
  • Easy-access online results
  • Testing for everyday life—work, home, and social events
  • Convenient city center testing locations

Our Boston Locations

Moving – New Location Information Coming Soon!

Our Beverly Locations

900 Cummings Center, Suite 214U, Beverly, MA 01915


Frequently Asked Questions

Breath tests can have false negative results in certain situations, from 5% to 12% of the time. However, the breath test is considerably more accurate than blood tests.
Consider cutting down on sweets or eliminating them entirely and discuss next steps with your primary care physician.

If you are sensitive to sweets, are prone to low blood sugar incidents, or you have been diagnosed with leaky gut symptoms or an inflammatory bowel disease like Crohn’s or Ulcerative Colitis, this test is ideal for you.

We also provide best-in-class COVID testing, 4-Plex (COVID, RSV, Flu A/B) testing, SIBO testing, lactose intolerance testing, and more.

Take a look at our home page for information on more testing options.