There are many personal anecdotes like this one. Diabetics who have been told that their condition is chronic and progressive — meaning a future of more meds and no hope of reversal.
Then they go on a LCHF diet and their diabetes is either dramatically improved or completely reversed. See the tweet below from Dale. Diabetic for ten years, increasing his insulin treatment for three years (presumably his doctor didn’t know any better), and then switched to LCHF. Three weeks later, no more insulin required.
The American Diabetes Association will not tell you this.