Enzymes are catalysts that make metabolism, the chemical reactions necessary for life, possible. They occur naturally in all living things. They digest food, eliminate toxins, and purify the blood. Proteolytic enzymes are taken on an empty stomach, aiding healing, digestion of waste tissue and reduction of bruising. Enzymes strengthen the endocrine system, and deliver nutrients and hormones to the cells. They nourish the brain and other organs, help balance cholesterol,and triglyceride levels, and help strengthen the immune system.