Insulin is a hormone which is made naturally in your body, in the pancreas. It helps to control the levels of sugar (glucose) in your blood. If your body does not make enough insulin, or if it does not use the insulin it makes effectively, this results in the condition called diabetes (diabetes mellitus).
This is a companion discussion topic for the original article at https://patient.info/medicine/metformin-for-diabetes-glucophage-sukkarto-yaltormin