Blood sugar excess and storage in fat cells is a result of "too much insulin" causing "ins. resistan

I'm reading a flyer and rereading it because it presents a different theory re: DiabetesII... which is that it's insulin overload that causes cells to become insulin resistant.. and thus leaves too much sugar in the blood to be stored in fat cells. The cure is to eat in a way that lowers insulin in the blood which leads to lower insulin resistance.