I have had type 1 for over 20 years, well controlled, then suddenly, after a routine blood test on June, the consultant ( via my GP) has prescribed Metformin too, with a recommendation to reduce my insulin intake by 2 units a day, monitoring blood sugars accordingly. I was surprised by this change after so many years, has anyone had a similar experience or is on such a current regime? Read one 2018 study that suggests it is beneficial in reducing insulin intake and weight loss?