It is possible to have the production of insulin cease over time, but usually, this is not the case for type 2 diabetes. It is even less likely if you live a healthy lifestyle. You can have your insulin output measured with a C-Peptide test. If your body truly no longer makes insulin, as is the case with type 1 diabetes, and you are not injecting insulin, you will die. There are those with type 2 diabetes who do require insulin to have any semblance of good levels but can survive without insulin for some period of time19. How Much Does Insulin Decrease With Age With Type 2 Diabetes?