Continue ReadingPatient Guide to Insulin: About Diabetes. Insulin is a hormone made by the pancreas that allows your body to use sugar (glucose) from carbohydrates in the food that you eat for energy or to store glucose for future use.Insulin helps keeps your blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia).ontinue ReadingPatient Guide to Insulin: About Diabetes. Insulin is a hormone made by the pancreas that allows your body to use sugar (glucose) from carbohydrates in the food that you eat for energy or to store glucose for future use.