Table 3: Body Mass Index of subjects of studies.

Study (reference #)	BMI (kg/m2; mean ± standard deviation)
[25]	27.0 ± 3.7
[26]	28.06 ± 5.12 (intervention); 27.57 ± 4.59 (control)
[27]	29.5±4.2 (intervention); 30.3±5.6 (control)
[28]	24.8±0.79 (intervention); 24.9±0.79 (control)
[29]	30.8 ± 3.8
[30]	31.26±9.47
[31]	31.2 ± 4.1 (intervention); 32.7 ± 5.2 (control)
[32]	25.64±5.39
[33]	18.8±3.2 (intervention); 18.6±3.0 (control)
[34]	26.9 ± 4.2 (intervention); 26.7 ± 3.8 (control)
[35]	27.3±3.2 (control); 27.9±1.5 (first arm); 28.1±1.5 (second arm)
[36]	32.3 ± 4.2 (intervention) 32.6 ± 3.9 (control);
[37]	not reported
[38]	not reported
[39]	25.4±4.7
[40]	25.9 ± 3.1 (intervention) 25.2 ± 2.7 (control)
[41]	not reported
[42]	74.0 ± 13.0 (intervention) 75.4 ± 12.9 (control)
[43]	29.5 ± 8.0
[44]	30.2 ± 4.0 (control) 29.9 ± 3.7(first arm) 29.7 ± 3.8 (second arm)
[45]	30.4 ±3.9 (control) 30.2 ±4.1(first arm) 30.7 ±4.2(second arm)
[46]	not reported
[47]	37 (intervention: range 32–41); 36 (control: range 30-42)
[48]	29.9±3.7 (first arm); 29.7±3.8 (second arm); 30.2±4.0 (control)
[49]	31.1 ± 4.72
[50]	30 – 34.9
[51]	reported in supporting information 30.2±3.8