It’s too late for many people. It’s true that the more damage a person’s pancreas, liver, or blood vessels have suffered, the slower recovery is likely to be. Some complications may not be totally reversible. If you read any of the books or Web sites listed in “Resources,” though, you will probably find stories of people whose diabetes was more advanced than yours but who still managed to reverse it to some degree. And by following their examples, perhaps you can, too.