Fructose Intolerance Test

About this test

Key Benefits

• Relevant for Food Related Digestive Symptoms: May be useful when symptoms appear after fruit, honey, juice, sweeteners or fructose containing foods.

• Measures Breath Gases: Analyzes hydrogen and methane produced during bacterial fermentation.

• Simple At Home Testing: Collect breath samples at home using the included test kit.

• Prepaid Return and Digital Results: Send your samples back using the included return materials and access your results online.

What This Test Measures

• Hydrogen
  Hydrogen may increase when unabsorbed fructose is fermented by gut bacteria. Measuring hydrogen can provide insight into fermentation patterns after fructose intake.

• Methane
  Methane may be produced by methane producing microorganisms in the gut. Measuring methane alongside hydrogen gives a broader view of breath gas response and digestive fermentation patterns.

How It Works

1. Order Your Kit
Purchase your test online.

2. Prepare Before Testing
Follow the preparation instructions carefully before collecting your breath samples.

3. Collect Your Samples
Collect breath samples at home before and after drinking the fructose solution.

4. Send It Back
Mail your samples to the laboratory using the included return materials.

5. Receive Your Results
Access your digital laboratory results online when the analysis is complete.

Sample Collection

The sample is collected using a breath test at home. You collect breath samples at specific time points before and after drinking the fructose solution, according to the included instructions.

Correct preparation and sample timing are important, as diet, medication, supplements and gut activity can affect breath gas results.

Accredited Lab and Analysis

Your samples are analyzed in an accredited laboratory using established methods for measuring hydrogen and methanein breath samples.

How to prepare

The test should be performed in the morning on an empty stomach. **4 weeks before testing** Avoid **antibiotics**, as they may affect gut bacteria and breath gas results. **1 to 2 weeks before testing** Avoid **probiotics, laxatives, proton pump inhibitors and enemas**, according to the included instructions. **3 days before testing** Avoid medicines that may affect digestion, unless otherwise advised by a healthcare professional. **24 hours before testing** Avoid **high fibre foods, gas forming foods and alcohol.** **12 hours before testing** Fast before the test. Only **water** is allowed. **Before and during the test** Avoid **smoking, exercise, chewing gum, toothpaste and mouthwash.** Follow the included instructions carefully before and during sample collection.

Frequently asked questions

Is this the same as hereditary fructose intolerance?

No. This breath test is designed to assess fructose malabsorption, meaning difficulty absorbing fructose in the small intestine. It does not assess rare hereditary fructose intolerance.

What symptoms can fructose malabsorption cause?

Fructose malabsorption may be associated with bloating, gas, abdominal pain, diarrhoea, rumbling or digestive discomfort after eating fructose containing foods.

Why do I need to prepare before the test?

Breath gas results can be affected by diet, antibiotics, probiotics, laxatives, digestive medication, fasting and sample timing. Following the preparation instructions helps make the result more reliable.

Customer reviews

4.6/5 (5)

• 5/5 — Finally got some answers about my bloating issues. The results took about two weeks but were worth the wait.
• 4/5 — Solid product that gave me the data I needed for my doctor.
• 4/5 — The prep diet is a bit of a pain but the test itself is straightforward. Glad I did it.
• 5/5 — Fast delivery and the instructions were very easy to follow.
• 5/5 — Clear results and easy process.