@JSG207 - The DCUK Advisory panel includes some very powerful characters, in varying roles with in the medical and allied professions.
DCUK is doing a massive amount of work on behalf of all diabetics, and the commitment to establishing and further developing the Low Carb and other educational programmes surely demonstrates their commitment to making health outcomes better for those living with diabetes?
Changes within the NHS (or any other massive organisation) are always frustratingly slow for reasons we all probably understand, to an extent, and others that just seem bewildering, irrespective of the actual desired change.
On a personal level, I am quite heavily involved in one of the country's main diabetes and lifestyle research centres (in the widest sense of both diabetes and lifestyle). There's a huge amount going on there too.
All research studies and trials take time to conduct, write up, publish, have peer reviewed, then usually a much bigger study of the same topic. Those things all take time and involve serial funding applications; not all of which are assured, no matter how credible any of us think x, y or z piece of research is.