I’ll have to read about Dr. Noakes. I recommend exercise because I see it lead to lower fasting numbers with similar diet, insulin dosage and sleep on my CGM. My understanding is that this happens because of a temporary increase in insulin action on the exhausted muscles, over the next day or 1.5 days in my case.
It does, but it doesn't seem to be enough in many cases. And it's not as effective as fasting for a few days.
I had to inject insulin for a few weeks recently, then I fasted for a few days and was able to quit Insulin totally. After a fast of about 2 weeks I had blood sugar levels in the lower normal range and you wouldn't know I ever had a problem. Interleaving periods of fasting and a low-carb diet with 16h-8h intermittent fasting I lost about 20 kg in 2 months.
