Lactasa is an enzyme that helps break down lactose, a sugar found in milk and dairy products. Many people, especially those with lactose intolerance, have difficulty digesting lactose because their bodies do not produce enough lactase. This can lead to symptoms like bloating, gas, and diarrhea after consuming dairy. Lactasa is available as a dietary supplement, allowing those with lactose intolerance to enjoy dairy without discomfort. By taking lactase before consuming lactose-containing foods, individuals can improve their digestion and reduce unpleasant symptoms, making it easier to include dairy in their diets.