Dr. Fung is a nephrologist and huge advocate of intermittent fasting. He has an article over at DietDoctor that you may find interesting (link below). Beware: at the link you will find an accurate photo of a gangrenous foot that you may find nauseating or disturbing.
I see gangrene in the hospital once a month. It’s one of the things that keeps me motivated to help PWDs (people with diabetes) learn to conquer diabetes.
Another caveat. If you take drugs that have the potential to cause hypoglycemia, you may indeed suffer life-threatening hypoglycemia if you drastically cut back on sugar and other refined carbohydrates. You better know what you’re doing.
Dr. Fung writes:
“Once we understand type 2 diabetes, then the solution becomes pretty bloody obvious. If we have too much sugar in the body, then get rid of it. Don’t simply hide it away so we can’t see it. There are really only two ways to get rid of the excessive sugar in the body.
- Don’t put sugar in [nor refined starches]
- Burn it off
That’s it. That’s all we need to do. The best part? It’s all natural and completely free. No drugs. No surgery. No cost.”
Source: How to Reverse Type 2 Diabetes – The Quick Start Guide – Diet Doctor
Paleo Diabetic 
Dr Fung’s article is far too simplistic and one-size-fits-all.
I agree with his points about the attitude of most doctors.
I find his scaremongering (he talks about our bodies rotting) ineffective and counterproductive. Gangrene happens only to those with very high BGs and where they do not check their feet. For everyone else whether they have highish BGs or not this is not an issue so scaremongering is not helpful. One point though, if checking your feet and you see a toe that looks a little reddish and that’s all head off to the doctor as gangrene often starts like that and then works unseen beneath the skin. Chances are that it’s just a mild infection but if you have issues with your BG it might be wise to get it checked quick. Maybe wise for any of use to get it checked!
I had BGs of around 5.4 – 6.4 a few years ago and yet my weight was the same as now ie overweight.
I was healthy active and not overweight and yet I got T2
I find exercise has only a small effect.
Ditto intermittent fasting although I like doing it sometimes.
So why are my BGs going down to a range of 6.5 – 8.0 and still trending down? I simply have stopped eating so many carbs. Not just refined carbs but unrefined carbs and limit my carb intake to about 25g – 50g day. It takes time especially if you’ve been naughty like me over the past eight months or so.
The simplest advice I can give is to eat to your meter.
Oh and keep taking your meds until such time they may cause you to go too low.
If you feel exercise helps then do it but for many it does not have much effect on BGs.
Everybody is different so that means different approaches. And yes there are some unfortunates who will not respond to any type of approach.
And yes, diabetes is NOT progressive!