You should obtain 2 books, not directly related to diabetes, but related to the science of low carb eating. Both are by Phinney and Volek. The Art and Science of Low Carb Living and the Art and Science of Low Carb Performance. They are both doctors / scientists, I haven't got the performance one but it is to do with endurance sport. They have done a lot of work with a professional cycling team in the US, looking at maximising performance while 'low carb-ing'. The one just on living goes right into the science and convinced me that a low carb diet was a healthy alternative for life. I am not t1 - I was just pre-diabetic, (now fit and healthy, on Atkins dietfor life) so not a comparison, but there might be some tips to help you combine a low carb diet with an exercise schedule.