I recently read that research is being performed on sled dogs to uncover ways to prevent and treat obesity in people living with type 2 diabetes. The first phase of the research has been completed examining how dogs that train for the 1,100-mile Iditarod become insulin-sensitive and convert fat to energy proficiently. Has anyone else heard about this study?

No I haven't

Now let me get this straight are they implying that exercise is creating in diabetes in sled dogs
Surely I'm not comprehending correctly
After all we are told to exercise.
So why would it make a sled dog diabetic?