Comparison 1. Whole grain versus control.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1.1 Body weight change (kg)	5	439	Mean Difference (IV, Fixed, 95% CI)	‐0.41 [‐1.04, 0.23]
1.2 BMI change	5	516	Mean Difference (IV, Fixed, 95% CI)	‐0.12 [‐0.24, 0.01]
1.3 Total cholesterol change (mmol/L)	7	722	Mean Difference (IV, Fixed, 95% CI)	0.07 [‐0.07, 0.21]
1.4 LDL cholesterol change (mmol/L)	8	770	Mean Difference (IV, Fixed, 95% CI)	0.06 [‐0.05, 0.16]
1.5 HDL cholesterol change (mmol/L)	8	772	Mean Difference (IV, Fixed, 95% CI)	‐0.02 [‐0.05, 0.01]
1.6 Triglycerides change (mmol/L)	8	771	Mean Difference (IV, Fixed, 95% CI)	0.03 [‐0.08, 0.13]
1.7 Systolic blood pressure change (mmHg)	8	768	Mean Difference (IV, Fixed, 95% CI)	0.04 [‐1.67, 1.75]
1.8 Diastolic blood pressure (mmHg)	8	768	Mean Difference (IV, Fixed, 95% CI)	0.16 [‐0.89, 1.21]