What is the primary function of insulin?

Insulin's primary function is to facilitate the movement of glucose into the cells. When you consume carbohydrates, they are broken down into glucose, which enters the bloodstream. In response to rising blood glucose levels, the pancreas secretes insulin. This hormone acts as a key, allowing glucose to enter the cells where it can be used for energy or stored for later use.

By doing this, insulin effectively helps maintain normal blood sugar levels and fuels the body's cells, particularly in the muscles and liver. The role of insulin is essential in energy metabolism, and its effectiveness ensures that the body's cells receive the necessary glucose to function properly. This process is crucial for overall health and energy regulation in the body.