Lactose intolerance, the inability to digest lactose (milk sugar), is caused by a lack of or deficiency of lactase, an enzyme manufactured in the small intestine that breaks down lactose. When a person with lactose intolerance consumes milk or other dairy products, the lactose remains undigested, fermenting in the digestive tract and causing a range of symptoms. These symptoms include cramps, bloating, gas, flatulence, pain, and diarrhea.Lactose intolerance can be relieved temporarily by supplementation with natural lactase enzyme to restore proper digestion and provide relief from gastrointestinal symptoms.Dairy Again Lactase Enzyme from Webber Naturals prevents the symptoms of lactose intolerance. It can be taken to assist in the digestion of lactose in milk products or lactose-containing medications.As it is an enzyme that works directly on lactose in the food you are ingesting, it must be taken each time you eat food that contains lactose. Lactase does not stay in the body and must be taken at each meal or with snacks containing dairy products.