Where in the body is insulin produced?

Insulin is produced in the pancreas, specifically within clusters of cells known as the islets of Langerhans. This hormone plays a crucial role in regulating blood glucose levels by facilitating the uptake of glucose into cells, primarily muscle and fat cells, and inhibiting glucose production in the liver. The pancreas is essential for maintaining homeostasis in blood sugar levels, making its role in insulin production vital for metabolic health.

The liver, while important for processing carbohydrates and storing glucose as glycogen, does not produce insulin. The gallbladder primarily stores bile that aids in digestion, and the kidneys are responsible for filtering blood and producing urine, neither of which involve insulin production. Understanding where insulin originates helps clarify its physiological role and the impact of pancreatic function on overall health.