David, a little red wine is allowed, however, it has to fit in with your calorie allowance and at a low rate of calories most people prefer to save it for food. You are also allowed 70% dark chocolate in small amounts.
Donnyman, I cannot go into the full pathophysiology of the various types of diabetes here. There is lots of reading you can do. Where Type 2 can be called different things but still be Type 2 is because the end result is the same although the cause might be different. For example, most type 2 starts later in life but more and more it is starting earlier (i.e. 40s and 50s where as it was 60s and 70s) so it has a new label of early onset diabetes but it is still Type 2, then there is standard Type 2 caused by the pancreas not creating enough insulin, then there is another Type 2 where the pancreas creates the insulin but it does not do its job efficiently, also known as Type 3, then there is latent diabetes, usually caused by either a brain injury or malfunction which causes the pancreas to not produce enough insulin or not use it efficiently but this is a special case and extremely rare as to rarely get a mention and very little is known about it. Type 1 is where the pancreas has never been able to produce insulin or has completely packed up in early life. There is no insulin, end of story. Type 2 there is insulin, just not enough or quality. Gestational only occurs in pregnancy so is treated as a special case as it can disappear as soon as the pregnancy is over or can lead to Type 2 in the future.
So, to summarise, Type 1 no insulin at all, Type 2 some insulin but inefficient (for various reasons so given different names) Type 3 unknown origin unknown physiology and rare, Gestational occurring in pregnancy. Having said I wouldn’t go through it all I seem to have.
Donnyman, are you asking because you are interested, or are you asking because you want me to justify my statement. If you know something different please share it with us as you seem to think what I am saying is wrong. If you want to learn about it do the 2 weeks course with http://www.futurelearn.com called The Diabetes Epidemic.