Sure. Type one means you don't make insulin, and in type two you're either not making enough (for one of a number of reasons) or —most commonly these days— you'

Sure. Type one means you don't make insulin, and in type two you're either not making enough (for one of a number of reasons) or —most commonly these days— you've been running on a 30-year sugar high and now your cells just ignore insulin at any level. The article is talking about "re-sensitising" cells to insulin by starvation diet.