Pancreatin is a mixture of several igestive enzymes produced by the exocrine cells of the pancreas. It is composed of amylase, lipase and protease. This mixture is used to treat conditions in which pancreatic secretions are deficient, such as pancreatitis and cystic fibrosis. It has been claimed to help with food allergies, celiac disease, autoimmune disease, cancer, and weight loss. Pancreatin is sometimes called "pancreatic acid", although it is neither a single chemical substance nor an acid.