Although prevention is clearly a logical first step in the management of th
e obese Type 2 diabetic patient, such programmes have had little long-term
success. Diet, exercise and behavioural modification still form the corners
tones of treatment and relatively small weight loss results in improvement
of all major obesity-related co-morbidities, including Type 2 diabetes. The
obese diabetic patient faces extra impediments to weight loss, including t
he adverse effects of diabetic medication, poor glycaemic control and diabe
tes-related complications. New drugs may offer some additional help, in gen
eral by providing the benefit associated with the weight loss as such. Bari
atric surgery can produce major long-term weight loss in the severely obese
.