Study	Reason for exclusion
Ali 1995	Not a randomised controlled trial
Appel 2000	No relevant outcomes reported
Beresford 2001	No relevant outcomes reported
Blum 2007	No relevant outcomes reported
Broekmans 2000	No relevant outcomes reported
DASH 1995	Short term
Fielding 2005	Not minimal control
Fuemmeler 2006	No relevant outcomes reported
Havas 2003	No relevant outcomes reported
Lehtonen 2010	Authors were contacted several times for information on the lifestyle intervention used in the study but there was no response. Due to this we have had to assume that the lifestyle intervention for the control group was not minimal and therefore excluded the study.
Lutz 1999	No relevant outcomes reported
Nomikos 2007	No relevant outcomes reported
Porrini 2011	Ongoing trial. Period of follow‐up less than 3 months
Rock 2001	No relevant outcomes reported
Singh 1992	BMJ claims fraudulent data. http://www.bmj.com/content/suppl/2005/07/28/331.7511.281.DC1
Sorensen 1999	No relevant outcomes reported
Staten 2004	Multifactorial intervention
Steptoe 2004	Not minimal control
Svetkey 2003	Multifactorial intervention and includes weight loss
Takai 2003	Not minimal control
Thomson 2011	Ongoing trial. Period of follow‐up less than 3 months
Verlangieri 1985	Not a randomised controlled trial
WHI	Multifactorial intervention
Winham 2007	Not minimal control