The primary hormone produced by the pancreas is insulin. Insulin regulation of blood glucose levels is crucial for maintaining energy balance and metabolic health. It facilitates the uptake of glucose by cells, allowing them to use it for energy or store it for later use. In individuals with diabetes, insulin production or effectiveness is impaired, leading to imbalanced blood sugar levels. This may necessitate external insulin administration or lifestyle changes to manage glucose levels effectively. Insulin's role in metabolism emphasizes its importance in overall health.