[rowinofwin]

A fundamental problem with this approach is it is managing the end points of the insulin system while ignoring the start points. And you intake sugars your body will digest them and absorb through the gut into the bloodstream. As the level raises your body needs to burn or store the glucose to keep the blood level within safe ranges. One option is to store the glucose as glycogen primarily in muscle tissue and insulin is a part of the signal for this process. Another option is to convert the sugar to fat for storage, again using insulin as a signal. In the first case you have a fairly low limit (about 500g in muscle, another 100g in the liver, for an adult male of average size) and once this is full you can't use this pathway to store any more glucose. You then have to shunt all the remaining glucose into your fat cells by converting it into fats.

So if you have someone who has a chronically high intake of sugars, complex or simple, they will eventually fill their muscle reserves and be storing further sugar as fat. This will always require insulin to activate the glucose storage pathways and this will escalate over time if the level is high enough. Adding more insulin is a solution in the very acute timeframe, but chronically it is just escalating the problem.

The better solution is to reduce the intake of sugars. This means that you need less insulin to manage it, you don't increase resistance to insulin over time, and you don't progress diabetes. You can add fats in place of the sugar for energy and they burn and store without using huge amounts of insulin, so you keep the overall insulin load low and reduce the need for supplemental insulin.

Someone who is a type 2 diabetic may be able to reduce to zero supplemental insulin with a low enough sugar diet. They may also over time reduce their insulin resistance to the point where there is no diagnostic marker of diabetes at all, such as hba1c, fasting insulin/glucose, etc. Along with the markers much of the secondary harm is able to halt or reverse depending on the damage. You won't undo blindness but joint pain, neuropathy, excessive urination, fatigue, muscle wastage, and so on are all modifiable by ongoing diet. Making their insulin level higher to compensate for the diet is a temporary solution but if you don't deal with the diet it is just putting off the solution to the problem.