@Ruth B and
@nooboots I guess after we lose weight and get our insulin resistance down through diet and exercise, whether/when we move onto insulin will depend on, how many and how good are our beta cells.
they say at T2 diagnosis about half of our beta cells are wacked
http://care.diabetesjournals.org/content/34/Supplement_2/S258.full
There is a progressive deterioration in β-cell function in patients with type 2 diabetes. At diagnosis, islet function may be reduced by up to 50% compared with healthy control subjects, and there is also likely to be a reduction in β-cell mass of up to 60%. The reduction in β-cell mass is due to accelerated apoptosis. Currently, few pharmacological therapies address this reduction in β-cell mass and function. This means that patients are generally subjected to an increasing polypharmacy to control their diabetes, with most eventually being treated by insulin