The prediabetic patients showed substantial improvement from baseline to 6-month follow-up in vegetable intake ( 17.0 % , 43/253 vs 88.7 % , 205/231 ) , calorie intake ( 1.6 % , 4/253 vs 71.4 % , 165/231 ) , leisure-time exercises ( 6.3 % , 16/253 vs 21.2 % , 49/231 ) , body weight ( mean 62.12 kg , SD 9.85 vs mean 58.33 kg , SD 9.18 ) , and body mass index ( mean 24.80 kg/m ( 2 ) , SD 3.21 vs mean 23.36 kg/m ( 2 ) , SD 2.95 ) .