Chub, well you are sort of right, there are so many things people presume about diabetes that unfortunately are not quite correct OR have grey areas.
My father was diabetic and my nan and aunts on my mums side, which gave me a 90% chance of developing it at some point in my life, I was 4 stone less than i am now when it came on, so not weight or diet really, my doc just says " a bad gene pool" , BUT over the years and the added 4 stone it of course hasnt helped and my meds have been increased as i went along, I will never get rid of it ( so my doc says). It has nothing to do with eating too many sweet etc, once again i know people think this, and believe me i asked all these questions when i found out!!! It just a case of my insulin that my pancreas produces isnt the finest, in fact its a bit crap as insulin goes lol.
Still, i am very pleased if this experiment dropping at least one med works, and of course the fitter and slimmer I am allows my body to cope with the crap insulin better xx