Figure 1
RCT Flow Chart. a) Age 18-40 years with a BMI in the obese range (≥ 30 kg/m2; ≥ 27.5 kg/m2 for South Asians). b) Age 18-40 years with a BMI in the overweight range (≥ 25 kg/m2; ≥ 23 kg/m2 for South Asians) and with one or more additional risk factor for diabetes from:• family history of diabetes or cardiovascular disease in a first degree relative; • previous gestational diabetes; • polycystic ovarian syndrome; • HbA1c ≥ 5.8% (from our local Addition Leicester diabetes screening data a cut off HbA1c of 5.8% provided the best sensitivity and specificity fora diagnosis of prediabetes). • Impaired glucose regulation (defined according to the World Health Organisation).