Pancreatic beta-cell failure is a consequence of the organ being overwhelmed by glucose and fat, and the body's attempt to excrete excess sugar is a protective mechanism.

“your pancreas stops it makes a lot of insulin makes a lot of insulin makes a lot of insulin up on to a certain point now it's all clogged up and it can't make the insulin so what happens well you start to pee out all this sugar right you get the polyuria polydipsia glycosuria your body is actually trying to protect itself by peeing out all this sugar”