The name of the largest internal organ in the human body is the liver. The liver has a crucial role in various bodily functions, including detoxification of harmful substances, production of biochemicals necessary for digestion, and regulation of metabolism. Weighing about 1.5 kilograms (approximately 3.3 pounds) in adults, it has the unique ability to regenerate itself, making it essential for overall health. The liver processes nutrients from food, produces bile for fat digestion, and helps regulate blood sugar levels. Maintaining liver health is vital for overall wellness, as it influences many other bodily processes.