Enzymes facilitate countless daily reactions in your body to keep you alive and thriving. They perform many functions, including helping break down food for energy. In particular, proteolytic enzymes help break down and digest protein. They're found in the body, as well as in certain foods and dietary supplements. Enzymes create chemical reactions in the body. They actually speed up the rate of a chemical reaction to help support life. The enzymes in your body help to perform very important tasks. These include building muscle, destroying toxins, and breaking down food particles during digestion.