Meal Replacement Study

INTERVENTION: Participants will be randomised to either group A (diet) or B (meal replacement) for a period of six months. Group A will receive conventional low calorie diet and physical activity guidance once per month during the six months and Group B will receive the same advice and in addition replace one meal each day with a meal replacement, Microdiet (MD). CONDITION: Type 2 diabetes PRIMARY OUTCOME: Change in body weight between baseline and 6 months. SECONDARY OUTCOME: Change in metabolic control of diabetes INCLUSION CRITERIA: Type 2 diabetes. Body mass index > 29kg/m2.