The largest organ inside the human body is the liver. This vital organ plays a crucial role in various bodily functions, including metabolism, detoxification, the production of biochemicals necessary for digestion, and the regulation of blood sugar levels. The liver also processes nutrients absorbed from the digestive tract and produces bile to aid in fat digestion. In adults, the liver usually weighs about 3 pounds and is located in the upper right portion of the abdomen. It has remarkable regenerative capabilities, allowing it to recover from damage or disease, making it essential for overall health and wellness.