Metformin seems to me to be the safest of antidiabetic medicines. apart from initial gastric upsets, which wear off in time, it doesn't appear to have side effects. I'm told that the controlled release Metformin doesn't cause tummy grumbles. Pretty much everything else, including insulin, makes you put on weight. If you do, they tell you off for not sticking to the diet. Since we all slip up at least occasionally, we believe them and find out years and stones later that it's the medicine and not us. It can be put right. Many folk seeing this will know of David Mendosa, the diabetes journalist, who is now off all medication and keeping under great control and slim by diet and exercise alone. He's following Richard Bernstein's plans. We should all follow Bernstein. He's RIGHT!!
If you haven't read Mendosa and Bernstein and probably Gary Taubes too you should. Every diabetic should know their work.