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. 2021 Feb 5;6(2):e003585. doi: 10.1136/bmjgh-2020-003585

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© Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY. Published by BMJ.

This is an open access article distributed in accordance with the Creative Commons Attribution 4.0 Unported (CC BY 4.0) license, which permits others to copy, redistribute, remix, transform and build upon this work for any purpose, provided the original work is properly cited, a link to the licence is given, and indication of whether changes were made. See: https://creativecommons.org/licenses/by/4.0/.

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Flow chart depicting the Global Dietary Database (GDD) process for data identification and retrieval. GDD 2010 refers to the iteration conducted between 2008 and 2011, GDD 2017 new data from corresponding members (CMs) refers to surveys contributed by a data owner during the 2014–2020 iteration, GDD 2017 new data from public sources refers to surveys retrieved from publicly available databases during the 2014–2020 iteration.