A reliable diagnosis can only be obtained through a biopsy of the small intestine. This can determine the sucrase-isomaltase activity in the tissue of the small intestine. It is also possible to perform a hydrogen breath test, which, however, does not provide an accurate result for this condition.
The diet consists of eating foods that are low in sucrose. Sucrose, also known as granulated or household sugar, a disaccharide, is largely replaced by glucose (dextrose), fructose (fruit sugar) and lactose (milk sugar).
Look out for some fruits because they quite often contain high levels of sucrose.
Whether the affected person will have to observe a very strict diet or only a relatively strict diet depends on the residual activity of the enzyme. As children grow older their tolerance level for sucrose will increase.
There are enzyme supplements available on the market for this dissacharidase deficiency. They can be used to alleviate a strict diet regime.
Food Intolerance Network
Last Updated on Monday, 17 January 2011 10:10