The liver has three major functions, including synthesis, metabolism and secretion functions: 1. The liver is a synthetic organ of the body, capable of synthesizing albumin, globulin and coagulation factors. 2. The liver is the center of energy metabolism in the body, and fat, protein and sugar are mainly metabolized in the liver. 3. The liver has a secretion function, capable of secreting and excreting bile to promote fat in the small intestine that digestion and absorption. In addition to the above three functions, the liver also has a detoxification function, participating in the metabolism of drugs and toxic substances, which are then eliminated from the body with urine and body fluids.