The main function of the liver in the human body is to filter blood coming from the digestive tract before it passes to the rest of the body. It plays a crucial role in metabolism by converting nutrients, synthesizing proteins, and producing biochemicals necessary for digestion, such as bile. Additionally, the liver detoxifies harmful substances, regulates blood sugar levels, and stores vitamins and minerals. Its ability to regenerate makes it unique among organs. Disorders of the liver can significantly affect overall health, underscoring its importance in maintaining bodily functions.