Chymotrypsin is a digestive enzyme that breaks down proteins (i.e., it is a proteolytic enzyme; it can also be referred to as a protease). It is naturally produced by the pancreas in the human body. However, it can also be taken as an enzyme supplement to improve health and digestion and aid in the treatment of various diseases.
Generally, the primary uses of chymotrypsin are as a digestive aid and as an anti-inflammatory agent. The presence and amount of chymotrypsin in a person's stool is sometimes measured for diagnostic purposes as a test of pancreatic function. Testing for fecal chymotrypsin is non-invasive, unlike some other tests of pancreatic function.