Which hormone produced by the pancreas helps control blood sugar levels?

The hormone produced by the pancreas that helps control blood sugar levels is insulin. Insulin plays a crucial role in regulating glucose metabolism in the body. When blood sugar levels rise, such as after eating, the pancreas secretes insulin into the bloodstream. Insulin facilitates the uptake of glucose by cells, allowing them to use it for energy or store it as glycogen in the liver and muscles. This process lowers the blood sugar levels, ensuring they remain within a healthy range.

In contrast, other hormones listed, like adrenaline, are involved in the body’s response to stress and can increase blood sugar levels as part of the fight-or-flight response. Thyroxine (T4) primarily regulates metabolism and energy production but does not directly control blood sugar levels. Testosterone, though significant for growth and development, does not have a direct role in regulating blood sugar. This highlights why insulin is uniquely focused on maintaining glucose homeostasis in the body.