Fructose Intolerance Test

Test type
Lab Test

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Collection method

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GetTested’s Fructose Intolerance Test determines your ability to metabolize fructose, a sugar prevalent in fruits, vegetables, and honey, among other foods. Common indicators of fructose intolerance include bloating, gas, nausea, stomach cramps, and loose stools. This test measures both congenital fructose intolerance and fructose malabsorption, assessing your capability to digest fructose, regardless of genetic factors.

To further investigate digestive issues, consider also our SIBO Test and Lactose Intolerance Test, which can complement the fructose intolerance findings.

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EAN: 0616612787323 SKU: 2B120 Categories: , Tag:

About Fructose Intolerance

Fructose, found in common granulated sugar (sucrose), can cause intestinal and stomach issues when not properly broken down or absorbed. Fructose intolerance, also known as fructosemia, occurs when the body struggles to break down fructose in the blood due to an enzyme deficiency. Often hereditary, this condition's severity varies, with some experiencing no symptoms and others severe discomfort.

Understanding the GetTested Fructose Intolerance Test

GetTested's fructose intolerance test evaluates your ability to metabolize fructose, identifying potential malabsorption issues. It offers a comprehensive assessment, distinguishing itself from other tests that focus solely on genetic factors.

Symptoms of Fructose Intolerance

Symptoms can include gas, cramps, stomach pain, and diarrhea. Severe cases, particularly in children, might lead to acute illness, breath shortness, and altered blood pH levels. Fructose overload over time can damage the liver and kidneys. Additional symptoms to monitor include tremors, seizures, and abnormal sweating. Often, symptoms first appear following infections or antibiotic treatments, although reduced fructose absorption likely existed since childhood. Testing for lactose intolerance is also advisable, as it often coexists with fructose intolerance.

Causes of Fructose Intolerance

Fructose is a monosaccharide that, combined with glucose, forms sucrose. Its absorption requires the fructose-1,6-bisphosphate aldolase enzyme. A deficiency in this enzyme causes fructose to accumulate, potentially impacting the liver, kidneys, and intestines. Classified into two types, fructose intolerance can be:

  1. Essential Fructosuria: A mild form, managed by moderating dietary fructose.
  2. Congenital Fructose Intolerance: A severe, congenital enzyme deficiency, which can be life-threatening if untreated.

How the GetTested Fructose Intolerance Test Works

The test is a breath analysis conducted over three hours, with samples collected at five intervals. To ensure accurate results, avoid consuming fructose before and during the test. A minimum 8-hour fast is recommended prior to testing. Samples are analyzed at the GetTested lab, with digital results provided upon completion.

Treating Fructose Intolerance

Due to the high fructose content in the Western diet, fructose intolerance prevalence may be increasing. It affects both individuals with and without IBS (Irritable Bowel Syndrome). For those with this intolerance, managing the condition through early dietary adjustment is crucial to prevent serious complications involving the liver and kidneys.


How is the Fructose intolerance test carried out?

Our Fructose intolerance test is a home test kit. After ordering, we will send you a kit with everything you need to collect the breath samples. Then, simply return your sample to us in the pre-paid envelope.

Who should get a Fructose Intolerance test?

Individuals who should consider a Fructose Intolerance test are those experiencing specific symptoms indicating difficulties in metabolizing fructose. These symptoms include, but are not limited to, frequent digestive issues such as bloating, gas, stomach cramps, and diarrhea, especially following the consumption of foods high in fructose. The test is also pertinent for individuals with unexplained health problems that do not seem to improve despite general dietary changes. Additionally, those with a family history of fructose intolerance or related conditions might benefit from the test to assess their own risk and dietary needs.

When should I take the test?

It is recommended to take the test on an empty stomach in the morning. You should take the first breath sample before drinking the test solution. The other tests are to be taken: Glass 2: 30 minutes after drinking the solution. Glass 3: 1 hour after drinking the solution. Glass 4: 2 hours after drinking the solution. Glass 5: 3 hours after drinking the solution.

How quickly will I receive my results?

Once we receive your sample, average response time is 10 business days to receive results.

Example Report

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Example of Fructose Intolerance Test


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  • Beatrice
    Food mysteries can be frustrating. For the longest time, I couldn't pinpoint why I felt bloated after eating specific fruits or sweeteners. The Fructose Intolerance Test was an eye-opener. After a seamless testing process, my results confirmed my suspicions. I appreciate how GetTested lays out the results clearly and comprehensively. Now, I'm more informed and make better dietary choices.
  • Rhea
    I had been on a journey for the longest time, trying to figure out why certain foods didn't sit well with me. Even though I maintained a balanced diet, every now and then, I'd feel an unexpected discomfort. Then I stumbled upon GetTested's Fructose Intolerance Test. The entire process, right from ordering to taking the test, was so seamless. The kit arrived with clear instructions, ensuring I didn't face any confusion. What impressed me the most was the comprehensive report I received after sending in my samples. The detailed breakdown not only highlighted my intolerance levels but also gave me insights into how fructose was affecting my system. Thanks to the test, I now have a clearer understanding of my body's specific needs. Over the past few weeks, after making necessary dietary adjustments based on the results, I've experienced a significant improvement in my well-being. No more unexpected discomforts or second-guessing what I should avoid. I genuinely appreciate the depth and clarity of the information provided, and I wholeheartedly recommend this test to anyone wanting to get a clearer picture of their fructose tolerance. :)

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