My doc has never insinuated that, but if he ever did, I think I would put on my assertive face and tell him I categorically refuse to accept that. There is no scientific evidence of such, and evidence to the contrary is actually mounting . . . that insulin resistance comes first & causes the weight gain. Or you could just give 'im this
The answer is easy: Because it's what they're taught in Medical School. Even to this day. Period. Even in the face of all the evidence to the contrary.
If that is what your doctor insinuated to you, then next time you see him ask him "why do thin people get diabetes"? My Mother was 5 ft 3 inches, weighed 115 lbs soaking wet and yet she got type 2 diabetes....I'm sure she was asking WHY??
I am a believer that it was caused mainly by lifestyle and choices we made and that at least for a majority of us is what the evidence supports.
Though I was diagnosed when I was overweight, looking at old lab results I actually was diabetic when I was a skinnie minnie years earlier. It wasn't until I went on a "heart healthy diet" low in fat and high in "complex carbs" that I packed on the pounds. When I was finally diagnosed, the doctor blamed by weight and said it would be reversed if I just bothered to lose the extra pounds.HOWEVER a more accurate characterization - and a possible good retort to you doctor - would be, "YES, because you jerks told us to cut natural fats and eat 'healthy' whole grains for the last 40 years! We obeyed you and this is the result."