Trial ID	Date trial author contacted	Date trial author replied	Date trial author was asked for additional information (short summary)	Date trial author provided data (short summary)
Madjd 2017	31 July 2018; 10 January 2019	No answer	NA	NA
IRCT2015091513612N6	3 August 2018	No answer	NA	NA
Ensor 2015	17 June 2019	No answer	NA	NA
Barriocanal 2008	1 August 2018	No answer	NA	NA
Maki 2008	3 August 2018	No answer	NA	NA
EUCTR2006‐002395‐18‐DK	30 July 2018	31 July 2018	NA	31 July 2018: the author informed us "that the study have never been executed"
Grotz 2003	3 August 2018	No answer	NA	NA
Colagiuri 1989	3 August 2018	No answer	NA	NA
Cooper 1988	3 August 2018	No answer	NA	NA
Chantelau 1985	3 August 2018	3 August 2018	10 August 2018 Questions regarding method and outcomes reported	11 August 2018: authors clarified methodological issues (participants were recruited until N = 10 was achieved; randomisation of what to start with (sucrose versus cyclamate) was done openly by flipping a coin; body weight was measured independently by personnel unrelated to the study; there were no dropouts); raw data are no longer available. They wrote that "separate statistical analysis – although not reported ‐ for sucrose first versus cyclamate first was done, but did not reveal any significant difference".
Nehrling 1985	No email address available	NA	NA	NA
Stern 1976	No email address available	NA	NA	NA
NA: not applicable.