There is a presumption of many that diagnose diabetes that IR is always an important reason of why diabetes is caused.
By having higher than normal fasting blood glucose levels at a diabetic level usually means that IR is present.
Having excess insulin as well as glucose, gives your endocrine system the chance to store fat from these hormones as nature intended. Hence most T2s have a fatty liver and also kidney and liver function problems.
So the diabetes is treated by either diet or by medication.
The treatment for lowering blood levels is by using your source of insulin to work harder to combat the higher glucose levels.
So your insulin resistance increases.
By reducing your carbs dramatically, you lower the need for the extra insulin, so your pancreas doesn't need to work as much, the lower the circulating insulin, the less insulin resistance, the less insulin resistance, the lower your blood glucose levels come down.
Your body will burn off the fat because your source of energy is not the carbs you have stopped eating.
When you go below your fat threshold and you get your balance of carbs, protein and saturated fats for your system, your weight responds by either losing weight or finding the right weight for you.
You lose the excess insulin and glucose, no fat storage!
Getting your exercise right for you, wether it's just a walk or the longer and strenuous stuff is again, what your body requires.
You will find that if most T2s, reduce carbs, reduce plate size, and increases exercise, then insulin resistance will no longer push your levels up so high and the possibility of remission is possible, if you look after your general health.
However, there is always one, T2 can be caused by so many different reasons, that, only medication can get you some kind of control. It all depends on your beta cells.
If only doctors were persuaded to check insulin levels, when glucose levels seem to be out of balance or symptoms present, then even prediabetes could be prevented.
Hyperinsulinaemia is a high cause of prediabetes, diabetes and many of the symptoms that preclude insulin resistance and T2.