Thank you mrsD for all this information!! When I was diagnosed with diabetes in 2006 I did start with metformin but in 2008 I had some back problems and the doctor gave me steroid and I did ask if that was going to interfere with my diabetes and he said no, but it did and I became insulin dependent from that point on. Yes I am on b12 and I am already on magnesium for the last 2 years and I take 1 Vit D at 50000 twice a week...