Comparison 4. Chromium (500 μg) versus placebo.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Change in body mass index at 6 months	1		Mean Difference (IV, Fixed, 95% CI)	Totals not selected
2 Change in weight at 16 weeks	1		Mean Difference (IV, Fixed, 95% CI)	Totals not selected
3 Change in waist circumference at 16 weeks	1		Mean Difference (IV, Fixed, 95% CI)	Totals not selected
4 Change in fasting glucose at 16 weeks	1		Mean Difference (IV, Fixed, 95% CI)	Totals not selected
5 Change in systolic blood pressure at 6 months	1		Mean Difference (IV, Fixed, 95% CI)	Totals not selected
6 Change in diastolic blood pressure at 6 months	1		Mean Difference (IV, Fixed, 95% CI)	Totals not selected
7 Change in total cholesterol	2	91	Mean Difference (IV, Random, 95% CI)	‐0.05 [‐0.46, 0.37]
8 Change in triacylglycerol	2	93	Mean Difference (IV, Random, 95% CI)	‐0.28 [‐0.76, 0.21]