The DUK page is a bit confusing on this "remission" vs "reversal" business:
https://www.diabetes.org.uk/diabetes-the-basics/type-2-reverse
Reversing type 2 diabetes
We don’t call it diabetes reversal [but you just did!], because this might sound like it's permanent, and there’s no guarantee that your diabetes has gone forever.
But yes, it may be possible to put your type 2 diabetes into remission. This is when your blood sugar levels are below the diabetes range and you don’t need to take diabetes medication anymore. This could be life-changing.
How do you reverse diabetes? [Did it again!]
...
Could probably do with an edit.
Just because it's kind of interesting, philosophically ... This is from Joslin's "can it be reversed" page:
Type 2 diabetes (formerly known as adult-onset or non-insulin-dependent diabetes) can be a life-long, chronic disease in which the body either does not produce enough insulin or the cells in out body doesn’t respond to insulin correctly. Because of these two problems, there isn’t enough insulin...
www.joslin.org
According to recent research, type 2 diabetes cannot be cured, but individuals can have glucose levels that return to non-diabetes range, (complete remission) or pre-diabetes glucose level (partial remission) The primary means by which people with type 2 diabetes achieve remission is by losing significant amounts of weight.
We talk of remission and not a cure because it isn’t permanent. The beta cells have been damaged and the underlying genetic factors contributing to the person’s susceptibility to diabetes remain intact. Over time the disease process reasserts itself and continued destruction of the beta cells ensues. An environmental insult such as weight gain can bring back the symptomatic glucose intolerance.
You have to respect Joslin but there are things in this which seem dubious on different levels. Most abstractly, the idea that because an "insult" such as weight gain can bring back glucose metabolism problems, you can't talk of a "cure".
I really don't get that. By analogy, you could never talk of a "cure" for anthrax, because if you are exposed to another anthrax spore "insult" you may well get it again.
If I retain a healthy weight I avoid recurrence of glucose metabolism problems; if I avoid anthrax spores I avoid anthrax; if I avoid unhealthy behaviours I avoid health problems. Susceptability to developing health problems with unhealthy behaviours surely isn't by itself a sign of an underlying, dormant disease.
And there is absolutely no reason to suppose that necessarily "
over time the disease process reasserts itself and continued destruction of the beta cells ensues." That just seems to be a rhetorical survival from when it was thought that T2D was indeed necessarily progressive.
But anyway, all of this might tend to distract from the important issue: how to maintain weight loss, and in this sense, Joslin is more on the mark, because people will indeed tend in general to regain weight and offer their metabolisms renewed "insults".
The "gold standard" for intensive lifestyle interventions (counseling etc) for weight loss is I think the big long-term Look AHEAD trial.
In that, about 30% lost >10% of body weight (mean ~15%) after 1 year. At 8 years, just 39% of those 30% had retained >10% loss. So despite intensive ongoing interventions, only about 12% of the total particpants managed to retain >10% reduction long term.
There is as far as I know no reason to suppose that the NHS' "Newcastle" interventions, which are similar or perhaps less intensive, will achieve better results long term.
Trying to address weight issues via behavious modification for many is like trying to get people to consciously breathe at a particular rate, always - you're addressing a deep subconscious process with inadequate tools.
Not that the less than optimal long term outcomes have no value - in Look AHEAD about 20% of people maintained at least 5% loss long term, which is supposed to be enough for significant benefits. But for full "reversal" in a majority of people with the relevant type of T2D, you probably need meds like Wegovy/Ozempic or the new drugs in the pipeline.
