Its worse the that. Many think now it is reversed. As T2 is a resistance to insulin. And without insulin you cannot gain energy from your diet. It is now commonly accepted that those prown to t2 diabetes are often forced to eat due to the body gaining less energy from food.

So being genetically prown to to can lead to weight gain prior to diagnosis. Rather then weight gain leading to to t2d.

[–] pingveno@lemmy.ml 1 points 7 months ago

I don't want to say my experience is that of everyone, but I recently was diagnosed with T2D when I gained weight due to COVID-19 interrupting my exercise routine. Dropping weight has brought my A1C levels back in line in the past, then when I gained back some my A1C levels went back up. I'm not particularly prone to weight gain, but getting much into the overweight range kicked me into a diabetic A1C range. My father has similar characteristics, with even a health weight and diet leaving him with pre-diabetic A1C levels. But then in contrast, my mother and her mother were obese for decades without a smidge of diabetes. Lots of genetics going on there.