What is fructose?
Fructose is a naturally occurring type of sugar found in many fruits, some vegetables and honey. Just like with lactose (milk sugar) intolerance, it appears that not everyone has the ability to absorb fructose properly.
Why is fructose malabsorption a problem?
Researchers are now concentrating on investigating the role fructose malabsorption plays in the onset of gastrointestinal symptoms, particularly in people diagnosed with irritable bowel syndrome.
When fructose is not fully digested it is passed from the digestive tract to the colon, where the gut bacteria use the fructose as a food source. In the process hydrogen gas is produced and symptoms of bloating, cramps and diarrhoea may be experienced.
How is fructose malabsorption diagnosed?
Fructose malabsorption can be diagnosed via hydrogen breath tests and a low fructose diet is prescribed. Unfortunately the diet is not as simple as just monitoring your fruit intake, as many commercial foods use a type of fructose as their sweetener. Also fruits differ in their fructose content and their fructose to glucose ratio, which determines the extent of malabsorption.
Do people with fructose malabsorption give up fruit?
In conjunction with a gastroenterologist, an Accredited Practising Dietitian will be able to advise on what foods to exclude and also ensure that the overall diet stays nutritionally adequate. Generally people with fructose malabsorption can still enjoy certain fruits and get the minimum 2 serves a day recommended for all adults.
You can search for an Accredited Practising Dietitian in your area at: www.daa.asn.au
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