Nature's Way Lactase Enzyme provides a safe and all natural solution to lactose intolerant individuals who can’t resist the occasional pizza or nachos in their regular diet. Lactase is an enzyme that is found in the small intestine, liver and kidney of most all mammals that produce lactose. Lactase is the most abundant during and after infancy. In order for dairy to be digested, it has to pass a chemical barrier that coats the intestinal villi. The Lactase Enzyme will work to breakdown the lactose in your body to make it easier to digest.