Not me but DH was diagnosed last year.
He was classed as pre-diabetic 2yrs ago. His GP organised an online course back then. I think it was weekly for 4 weeks, then monthly and lasted 6mths. Others online were also pre-diabetic. They discussed healthy eating, exercise, food swaps etc. He already exercised and we eat a range of healthy food from scratch, so he didn't feel he benefitted much from it. His father was diagnosed at the same age, so it wasn't a surprise. We did change to brown bread, brown rice, brown pasta etc, but otherwise, he hasn't change his diet dramatically. A few years ago we both did keto, but the dietician running the course strongly advised against doing this.
Last year, his GP called to tell him that the latest blood test confirmed diabetes. Since then, he has been sent to a diabetic eye clinic and had a dexa scan on his liver. I 'think' this was a research project locally. He barely drinks and it wasn't done due to any liver concerns. He was not given any further info on diabetic eating, referral to a dietician etc, but maybe the course 2yrs back ticked that box?
His GP initially discussed metformin, but DH's father had issues with eventual resistance to this, and DH asked if anything else was available. He was started on semiglutide tablets. Yes, tablets! I'd never realised it was available in tablet form.
DH snacks slightly less and had increased his exercise, and has lost about 15kg (2 stone) in 6mths.
Strangely, his last blood test had a reading even less than his pre-diabetic reading. The GP couldn't explain it and wasn't sure if the diabetic reading was actually wrong, or if DH has dramatically reversed it? The GP suggested continuing the meds and trying to lose more weight and they will repeat the blood test in a few months.
Sorry, this is already SO long. NO- he has not told anyone about his diagnosis other than me. Even his own diabetic dad and his mum who is pre-diabetic. DH is in his 50's and prefers to keep his medical info to himself.