What is a key function of insulin?

A key function of insulin is to allow blood sugar, or glucose, to enter cells. Insulin is a hormone produced by the pancreas that plays a crucial role in carbohydrate metabolism. When you consume food, especially carbohydrates, blood sugar levels rise. In response, the pancreas releases insulin, which facilitates the uptake of glucose into cells, particularly muscle and fat cells. This process is essential for maintaining blood sugar levels within a normal range and providing energy for cellular functions.

Insulin not only helps cells absorb glucose but also aids in converting excess glucose into glycogen for storage in the liver and muscle tissues, further regulating energy balance in the body. By allowing cells to utilize glucose, insulin plays a significant role in preventing hyperglycemia (high blood sugar) and maintaining overall metabolic health.