Ending diabetes unlocking type 2 the answer book understanding diabetes books 1 kindle edition by mark vinzant author deborah benning editor format kindle edition 39 out of 5 stars 24 ratings. Type 1 diabetes type 1 diabetes develops when the insulin producing cells in the pancreas have been destroyed nobody knows for sure why these cells have been damaged but the most likely cause is the body having an abnormal reaction to the cells this may be triggered by a viral or other infection type 1 diabetes used to be known as insulin . type 2 diabetes understanding diabetes is the first step toward managing it learn what diabetes is and how it affects your body what kind of diabetes you have and how to manage your health