| Study | Reason for exclusion |
|---|---|
| Aherna 2019 | Study design: not a RCT |
| Ariati 2019 | Intervention: targets malnutrition |
| Batra 2014 | Intervention: targets malnutrition |
| Bayer 2009 | Participants: aged > 6 years at baseline |
| Benjamin 2007 | Outcome: no child dietary or anthropometric outcomes |
| Benjamin 2008 | Outcome: no child dietary or anthropometric outcomes |
| Benjamin 2014 | Outcome: no child dietary or anthropometric outcomes |
| Braga‐Pontes 2021 | Study design: does not have a minimum of 2 intervention sites and 2 control sites |
| Brophy‐Herb 2017 | Intervention: not primarily conducted in ECEC setting |
| Bryant 2021 | Intervention: not primarily conducted in ECEC setting |
| Buscemi 2019 | Study design: not a RCT |
| Byrne 2002 | Outcome: no child dietary or anthropometric outcomes |
| Carstairs 2020 | Outcome: assessed prior to 3 months |
| Caton 2013 | Study design: not a RCT |
| Chuang 2020 | Outcome: no child dietary or anthropometric outcomes |
| Correia 2014 | Study design: does not have a minimum of 2 intervention sites and 2 control sites |
| Coulthard 2017 | Study design: not a RCT |
| Coulthard 2018 | Outcome: assessed prior to 3 months |
| Dazeley 2015 | Outcome: assessed prior to 3 months |
| De Droog 2014 | Outcome: assessed prior to 3 months |
| De Droog 2017 | Outcome: assessed prior to 3 months |
| De Wild 2013 | Study design: not a RCT |
| De Wild 2015 | Study design: not a RCT |
| De Wild 2017 | Study design: not a RCT |
| De Zwarte 2019 | Outcome: no child dietary or anthropometric outcomes |
| Diktas 2021 | Outcome: assessed prior to 3 months |
| Earnesty 2019 | Outcome: no child dietary or anthropometric outcomes |
| Eichholzer‐Helbling 1986 | Study design: not a RCT |
| Esquivel 2016 | Study design: not a RCT |
| Ferris 2012 | Study design: not a RCT |
| Finch 2019a | Outcome: no child dietary or anthropometric outcomes |
| Finch 2019b | Outcome: no child dietary or anthropometric outcomes |
| Grady 2020 | Outcome: no child dietary or anthropometric outcomes |
| Hardy 2010 | Outcome: no child dietary or anthropometric outcomes |
| Harnack 2012 | Outcome: assessed prior to 3 months |
| Hausner 2012 | Outcome: assessed prior to 3 months |
| Hughes 2020b | Intervention: not primarily conducted in ECEC setting |
| Jouret 2009 | Study design: not a RCT |
| Kashef 2021 | Study design: not a RCT |
| Kim 2019 | Outcome: assessed prior to 3 months |
| Kling 2016 | Outcome: assessed prior to 3 months |
| Kostecka 2022 | Study design: not a RCT |
| Lanigan 2019 | Outcome: assessed prior to 3 months |
| Lawatsch 1990 | Outcome: no child dietary or anthropometric outcomes |
| Leahy 2008a | Outcome: assessed prior to 3 months |
| Leahy 2008b | Outcome: assessed prior to 3 months |
| Leahy 2008c | Outcome: assessed prior to 3 months |
| Leung 2019 | Intervention: not primarily conducted in ECEC setting |
| Lin 2016 | Intervention: not primarily conducted in ECEC setting |
| Malden 2019 | Outcome: no child dietary or anthropometric outcomes |
| Mannino 2019 | Outcome: no child dietary or anthropometric outcomes |
| McSweeney 2017 | Intervention: not primarily conducted in ECEC setting |
| NCT03672227 | Outcome: assessed prior to 3 months |
| NCT03957148 | Study design: not a RCT |
| NCT04552678 | Study design: not a RCT |
| NCT05050539 | Study design: not a RCT |
| Neelon 2016 | Outcome: no child dietary or anthropometric outcomes |
| Nekitsing 2019b | Outcome: assessed prior to 3 months |
| Norman 2019 | Participants: aged > 6 years at baseline |
| O'Connell 2012 | Study design: does not have a minimum of 2 intervention sites and 2 control sites |
| Rhee 2019 | Outcome: assessed prior to 3 months |
| Ritchie 2019 | Outcome: no child dietary or anthropometric outcomes |
| Rollins 2021 | Outcome: assessed prior to 3 months |
| Schuler 2019 | Outcome: no child dietary or anthropometric outcomes |
| Sirasa 2021 | Outcome: assessed prior to 3 months |
| Slining 2021 | Study design: not a RCT |
| Smith 2019 | Outcome: assessed prior to 3 months |
| Sojkowski 2012 | Outcome: assessed prior to 3 months |
| Sweitzer 2010 | Study design: not a RCT |
| Swindle 2021 | Study design: not a RCT |
| Vaughn 2019b | Study design: not a RCT |
| Vepsäläinen 2022 | Outcome: no child dietary or anthropometric outcomes |
| Verbestel 2014 | Intervention: not primarily conducted in ECEC setting |
| Vitale 2020 | Outcome: assessed prior to 3 months |
| Ward 2008 | Outcome: no child dietary or anthropometric outcomes |
| Ward 2017 | Outcome: no child dietary or anthropometric outcomes |
| Ward 2020b | Outcome: no child dietary or anthropometric outcomes |
| Williams 1998 | Study design: not a RCT |
| Williams 2002 | Study design: not a RCT |
| Yeom 2019 | Study design: not a RCT |
| Yoong 2016 | Outcome: no child dietary or anthropometric outcomes |
ECEC: early childhood education and care; RCT: randomised controlled trial