Lactase is a digestive enzyme specific and necessary for the breakdown of the dietary sugar, lactose. Lactose is found in milk and dairy products including, ice cream and yoghurt. The small intestines produce lactase, but some of us may not be able to produce enough. If undigested, lactose passes to the large intestine where it may be fermented by bacteria. This fermentation can cause bloating, wind and diahorrea.
A Lactase enzyme supplement can help counter this, by aiding the digestive system in the breakdown of lactase to help digestion.