I'm on Metformin but I was only diagnosed 3 weeks ago so I am about as uninformed as you are. I have read a lot about this drug, but your questions have me more confused.
I don't understand, what has the number of carbs consumed have to do with the dosage of Metformin? And bread only once a week? I thought whole grain bread 2x a day was ok in the diet. Is it different because judy3 has IGT and not diabetes???
I feel that I am really walking around in the dark here and the more postings I read, the more confused I get... and I feel stupid asking questions that I should probably know. My dr. really hasn't given me much info, except that this is what you take and how many times a day you take it. Oh, and he measures my bp and weight. However, he is sending me to a diabetic clinic in January, and in those 5 hours of instructions, I should most likely get answers to all my questions from dieticians and diabetes specialists.
Just when I think I have read and learnt something and moving ahead, I go back a few steps and I find I know diddley