Where in the body is insulin produced?

Insulin is produced in the pancreas, which is an essential organ for regulating blood sugar levels in the body. More specifically, insulin is synthesized by the beta cells located in the islets of Langerhans within the pancreas. When glucose levels in the bloodstream rise—such as after eating—the pancreas releases insulin to help cells absorb glucose for energy or storage, thus lowering blood sugar levels. This hormone plays a critical role in metabolism and maintaining homeostasis.

In contrast, the liver, gallbladder, and kidneys are involved in different bodily functions. The liver is primarily responsible for metabolizing nutrients, producing bile, and detoxifying substances. The gallbladder stores bile produced by the liver, aiding in fat digestion. The kidneys filter blood to produce urine and manage electrolytes and fluid balance. While these organs are vital to overall health, they do not produce insulin. Therefore, the pancreas is the correct answer as it directly relates to insulin production and regulation in the body.