Fructose Malabsorption


This is a simple, non–invasive, breath test that measures for fructose sugar malabsorption. This is a 3-hr long test with 4 breath samples collected (baseline and 1 every hour after drinking lactose solution).

The most common causes of fructose malabsorption include; a genetic error of hepatic enzyme aldolase B synthesis, incomplete fructose absorption in which the capacity of the gut to transport fructose across the intestinal epithelium is exceeded and this may be caused by disease/ disorders that causes intestinal damage; such as celiac disease.

Fructose absorption capacity varies widely within the population with estimates that up to 50% of the U.S. population is unable to absorb 25 g of pure fructose. In clinical trials, the researcher found that up to 80% of healthy controls were unable to absorb a 50g fructose load.

Symptoms of fructose malabsorption include abdominal pain, bloating, flatulence and diarrhea which is commonly mistaken for irritable bowel syndrome, small intestinal bacterial overgrowth (SIBO) and/or fungal overgrowths. Many people with fructose malabsorption can tolerate up to 25g of fructose and may need to improve health with additional nutritional counseling and/or digestive support.



Preparation diet (1-2 days) and a 12-hr fast are required.


Time Allowed for Collection

3 Hours


Turn Around Time

1-2 business days (once the specimen is received by the laboratory).


CPT Codes

Hydrogen 91065 Methane 91067


Additional Resources

Patient Instructions and Videos 

Download Lactose Collection Instructions

Fructose Șpec Sheet

Return Policy

All test sales are final. Returns may be allowed on a case-by-case basis with no test refundable 30-days of sale.  A $20.00 restocking fee will be assessed for all canceled orders once Neurovanna receives the returned, unused test collection materials. Used collection materials are not returnable.


Quality Control

Neurovanna’s quality control exceeds laboratory equipment manufacture’s recommendations with machinery calibrated after every 2-hrs or 5th test run. Testing performed on a CLIA waived, QuinTron BreathTracker TM Digital MicroLyzer H+. A parallel measurement of carbon dioxide (CO2) is obtained with each sample to allow for greater testing precision. All samples are processed using the CO2 correction factor technique that reduces errors and improves interpretation.


Allergy/ Medical Warning


Please Login to view prices
SKU: OTT0002 Category: Tags: ,


Fructose Malabsorption Product.


There are no reviews yet.

Be the first to review “Fructose Malabsorption”

Your email address will not be published. Required fields are marked *

error: Content is protected !!