Study	Reason for exclusion
(no authors listed) 1993	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Abou‐Raya 2014	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Andersen 1985	The intervention in this study is not a weight‐reducing diet
Andrews 2011	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Angelico 2009	Full text of this study is not available
Appel 2006	The intervention in this study is not a weight‐reducing diet
Ard 2005	The study is not a randomised controlled trial
Balas‐Nakash 2014	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Bao 1999	Full text of this study is not available
Bartels 1974	The duration of the intervention is less than 24 weeks
Bazian 2004	The study includes a combination of different interventions
Bouchonville 2014	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Cakir 2006	The study includes a combination of different interventions
Cambien 1986	Full text of this study is not available
Camhi 2010	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Chen 2009	The intervention in this study is not a weight‐reducing diet
Childress 2008	Full text of this study is not available
Christensen 2013	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Coppell 2010	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Curzio 1989	No electronic records and/or hard copies available, therefore insufficient data for inclusion (personal communication)
Cutler 1997	The study includes a combination of different interventions
De Mello 2008	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Diaz 2014	The study does not include participants with essential hypertension
Ebell 2013	The study is not a randomised controlled trial
Fagerberg 1989	The study includes different accompanying therapies
Gilliam 2012	The study is not a randomised controlled trial
Gillum 1983	The duration of the intervention is less than 24 weeks
Hall 2003	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Haynes 1984	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Hayward 2010	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
He 2000	The study does not include participants with essential hypertension
Heshka 2003	The study is not a randomised controlled trial
Heyden 1974	The study includes a combination of different interventions
Hsieh 2009	The study is not a randomised controlled trial
Hyden 1973	The study includes a combination of different interventions
Jones 1999	In this study the control group also includes a weight‐reducing dietary intervention
Karoff 1985	The duration of the intervention is less than 24 weeks
Karvetti 1992	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Katzel 1995	The study does not include participants with essential hypertension
Kawamura 1993	The duration of the intervention is less than 24 weeks
Kittiskulnam 2014	The study does not include participants with essential hypertension
Kolehmainen 2008	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Korhonen 2003	Full text of this study is not available
Larson‐Meyer 2010	The study does not include participants with essential hypertension
Lindgarde 2001	The intervention in this study is not a weight‐reducing diet
Mason 2013	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Masuo 2012	The study includes a combination of different interventions
McCarron 2000	The duration of the intervention is less than 24 weeks
Metz 2000	In this study the control group also includes a weight‐reducing dietary intervention
Noble 1971	The duration of the intervention is less than 24 weeks
Poppitt 2002	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Pritchard 2002	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Reisin 1978	The duration of the intervention is less than 24 weeks
Rissanen 1985	The study is not a randomised controlled trial
Salas‐Salvado 2008	The intervention in this study is not a weight‐reducing diet
Salinardi 2012	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Samaha 2003	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Schwab 2008	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Stamler 1985	The study includes a combination of different interventions
Tate 2011	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Trepanowski 2014	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup
Tunyan 2007	The study includes a combination of different interventions
Tuomilehto 2009	The study does not include participants with essential hypertension
Vissers 2010	The study does not include participants with essential hypertension
WHO Europ.Coll.Grp. 1974	The study is not a randomised controlled trial
Yamada 2013	The study includes normotensive and hypertensive participants but reports no or insufficient results for the hypertensive subgroup