Hydrogen breath testing is a diagnostic tool that measures the amount of hydrogen in the breath, which is produced by bacterial fermentation in the intestines. This test is commonly used to identify conditions like Small Intestinal Bacterial Overgrowth (SIBO), fructose intolerance, and sorbitol intolerance. Elevated hydrogen levels suggest that undigested carbohydrates are being fermented by gut bacteria, which can cause symptoms such as bloating, diarrhea, and abdominal discomfort.

Individuals experiencing symptoms suggestive of SIBO, fructose intolerance, or sorbitol intolerance could benefit from hydrogen testing. These symptoms include chronic bloating, diarrhea, abdominal pain, and gas. Testing is also beneficial for those who have not found relief from standard treatments for digestive issues.
Symptoms associated with elevated hydrogen levels typically include bloating, diarrhea, abdominal cramps, and flatulence. These occur due to the excessive fermentation of undigested carbohydrates by bacteria in the small intestine, producing large amounts of hydrogen.
Treatment for elevated hydrogen levels involves addressing the underlying cause. For SIBO, this may include antibiotics to reduce bacterial overgrowth and changes in diet to reduce carbohydrate intake that feeds the bacteria. Managing fructose or sorbitol intolerance involves dietary modifications to avoid specific sugars that trigger symptoms.
When considering elevated hydrogen levels, it’s important to evaluate dietary habits, medication use, and underlying conditions that may influence gut health. Factors like the use of antibiotics, which can alter gut flora, and conditions such as irritable bowel syndrome or celiac disease, should be considered. A thorough evaluation by a healthcare provider is crucial to determine the appropriate diagnostic and treatment approach.
Lab Test
Breath
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.
$ 79.99 USD
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Breath
The SIBO test is recommended if you suspect a bacterial overgrowth in the small intestine. Examples of symptoms include flatulence, bloating, abdominal pain or cramps, diarrhoea and/ or constipation. The SIBO breath test is easy to use and your sample will be analysed at a ISO-certified lab.
Our SIBO Test is often paired with the Gut Microbiome XL Test, providing a thorough analysis of your gut health.
$ 189.99 USD
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Breath
GetTested’s Sorbitol Intolerance Test accurately assesses your body’s ability to absorb sorbitol in the gut through an easy-to-use breath test, analyzed by an accredited lab. Common symptoms of sorbitol intolerance include abdominal pain and cramps, bloating, gas, and loose stools. This intolerance can be both genetic and acquired, often developing after intestinal diseases such as gastrointestinal catarrh and other inflammatory bowel conditions.
Experiencing abdominal discomfort? Beyond the Sorbitol Intolerance Test, GetTested also provides Fructose Intolerance test, IBS test, and Lactose Intolerance test to pinpoint the cause of your discomfort, as symptoms can be similar.
$ 79.99 USD
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