I'm not sure if my story qualifies as a success, because my Hab1c upon diagnosis was only 53 (7%) and all I did was go LCHF with a little IF. There was no conscious Calorie restriction -so my LCHF was often very High Fat!. I just counted carbs and ate to my BG meter. No medication and no additional exercise. I hate exercise for its own sake since I get no endorphin rush from it, perhaps this is for the same reason that Opioid painkillers have no (pain reduction) effect on me neither Codeine nor Morphine (in Hospital - that was very painful ) ! So from 170 lbs, Hba1c 53 in April this year to 148 lbs, Hba1c 45 in late August Well it may not be much of a success compared to some, but I'm happy with it and since it was really 'lifestyle' rather than diet, I'm confident that it is sustainable over the long term.