Nobody has said that, Granjura.
My husband was diabetic, type 1, since he was 11. My mother was type two for nearly 30 years, so I think I understand it as well as most people.
What I actually said was that Newcastle University are looking into whether low-calorie diets can reverse type 2 diabetes. It has worked for some people. There's a link to the research by Jane on another thread.
Strangely enough David Nicholson is talking about diabetes on Newsnight, because he was diagnosed a year ago. He never thought about it much before then.