Not a half bad stab at a concept I essentially agree with, but it could use some work.

Intermittent starvation was widespread historically. Various religions promote fasting.

We would do well to design more walkable human environments. We used to do that and being active is essential for human health.

But studies suggest a link between diabetes and inflammation, so infection and chemical imbalance in the system seem like better candidates for explanations for it than this text gives.