Quality assessment						Summary of findings
						Number of patients			Absolute change
No of studies (design)	Limitation: risk of bias	Inconsistency	Indirectness	Imprecision	Publication bias	Intervention	Comparator	Pooled mean difference	(95% CI)	Significance, P‐value	Quality
Total cholesterol
7 (RCT)	Serious limitation	No serious inconsistency	Serious indirectness	No serious imprecision	Undetected	544	537	−0.12	−0.30, 0.05	0.16	−1, −1 (low)
HDL‐cholesterol
7 (RCT)	Serious limitation	No serious inconsistency	Serious indirectness	No serious imprecision	Undetected	544	537	−0.01	−0.06, 0.05	0.83	−1, −1 (low)
LDL‐cholesterol
7 (RCT)	Serious limitation	No serious inconsistency	Serious indirectness	No serious imprecision	Undetected	544	537	−0.04	−0.16, 0.08	0.54	−1, −1 (low)
Triglycerides
6 (RCT)	Serious limitation	No serious inconsistency	Serious indirectness	No serious imprecision	Undetected	442	434	−0.22	−0.43, 0.02	0.03	−1, −1 (low)