what does insulin
Insulin (from the Latin, insula meaning island) is a peptide hormone produced by beta cells in the pancreas.It regulates the metabolism of carbohydrates and fats by promoting the absorption of glucose from the blood to skeletal muscles and fat tissue and by causing fat to be stored rather than used for energy.nsulin (from the Latin, insula meaning island) is a peptide hormone produced by beta cells in the pancreas.