It’s all pieces of the puzzle. With each step that can be taken, diabetes becomes potentially more curable, or delayable to your point.
That’s why I said that along with dietary changes. You can’t fix this with drugs alone, but the drugs might provide a boost that, along with the requisite dietary and life style changes, you may be able to reverse course.
Delay. Once the β-cells in the Islets of Langerhans are dead, there’s no bringing them back, short perhaps of transplantation or some development from stem cells. And even that won’t correct whatever it is in our metabolism that interferes with insulin to begin with. I’ve read several hypotheses, but I don’t think anybody really knows.