Bioven Lactase Enzyme is used to help people who have trouble digesting milk and other dairy products (lactose intolerance). Lactose is a type of sugar found in milk products. Lactase enzyme is normally produced by the body to help break down (digest) lactose. Lactose intolerance occurs when the body produces low amounts of lactase enzyme. Lactose intolerance can begin at different ages. Infants are not usually affected, but lactose intolerance can affect children as young as 2. It is very common in adults. One way to treat lactose intolerance is to avoid milk products. However, this can result in a lack of important nutrients and vitamins such as calcium, vitamin D, riboflavin, and protein. Some people use lactose-free milk or milk substitutes such as soy or rice milk. Most people with low lactase enzyme levels can tolerate small amounts of milk products at one time and get symptoms only with larger servings (6 ounces or more). Taking lactase enzyme with milk products as directed can help prevent upset stomach, abdominal bloating/cramping, gas, and diarrhea caused by these products.