What is the function of the liver in the human body?

The liver performs a vital role in the human body, specifically in its function of making and destroying substances. It is involved in various metabolic processes, such as the production of proteins, the synthesis of biochemicals necessary for digestion, and the regulation of glucose levels in the blood. The liver also detoxifies chemicals and metabolizes drugs, effectively breaking down harmful substances. Additionally, it plays a key role in the production of bile, which is essential for digesting fats.

While the liver does participate in removing waste from the blood, the broader function that encompasses both the creation and breakdown of substances aligns best with the choice provided. The elimination of waste is a part of its functions, but it does not fully represent the comprehensive and multifaceted roles the liver plays in overall metabolism and homeostasis in the body.