The wide range of sugars ingested every day, such as fructose, #lactose, sucrose, or sorbitol are absorbed within the small bowel. For some people, these sugars are absorbed poorly by the body and the sugars are passed into the colon. Fermentation of incompletely absorbed sugars within the colon may lead to a number of gastrointestinal symptoms like excessive wind, bloating, diarrhoea, and abdominal pain.

Breath testing involves measuring the number of gases produced inside the small intestines of the gut, following the administration of a test substrate. The concept of the breath test is that gases produced in the gut diffuses into the bloodstream, and then out again through the alveoli in the lungs into the exhaled air, where it can be easily collected and measured.

The gases of interest are Hydrogen and Methane. These are produced by the microbes in our gut, as a metabolic product of carbohydrate fermentation in the intestine. When these gases are detected in the breath, it provides information to learn more about your digestive health.

To find out more about these tests to see if they are suitable for your condition or symptoms, check with your gastroenterologist to find out more.

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