Insulin is a hormone that produced by beta cell in pancreas
. Sugar from food that come into through mouth, will be absorbed into intestine, then it is absorbed into blood stream. This glucose is as a main energy source for body cell in muscle and network. In order the glucose can do its function, there is needed "friend" which called insulin. This insulin is produced by beta cell at the islets of Langerhans in pancreas. Every time you eat, pancreas gives response by throwing insulin into blood stream. Like a key, insulin opens the cell door so that the glucose come into and making the glucose rate in blood to be down.
I personally pretty recommend you to wear a wonderful health product to take care your health every day every time and to prevent you for not getting sick by any attack of diseases, even also to recover your diabetes.