Intolerance test options include Fructose, Lactose and Sucrose.
Fructose malabsorption is a digestive disorder where fructose absorption is impaired. This results in an increased concentration of fructose in the intestine. This test can be useful to differentiate from other malabsorption disorders and give clarity for clients who may have IBS-type symptoms. This test does not assess hereditary fructose malabsorption which is a genetically driven condition.
Sucrose intolerance can also be found in those with IBS type symptoms. Sucrose (common table sugar) is a disaccharide composed of glucose and fructose. It is found in sugar cane, sugar beets and many fruits and vegetables. The enzyme sucrase is present in both animal and plant tissues and hydrolyzes sucrose into its two component monosaccharides.
Lactose intolerance is the inability to digest lactose. Lactose is a milk sugar, so is found in milk and other dairy foods. Intolerance to lactose can lead to symptoms such as gas, bloating, diarrhoea or cramping when dairy products are consumed. Symptoms come as a result of the body's lack of the enzyme lactase, which is an enzyme produced in the small intestine required in order to digest lactose.