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In 2020, the COVID-19 outbreak was declared to be a pandemic. Governments implemented various measures, such as social distancing, quarantine, and lockdowns, to minimize the spread and effects of COVID-19. Previous studies1,2 based on questionnaires showed that respondents reported unhealthier eating habits during lockdown. Unhealthy eating behavior formed during the pandemic could result in undesirable long-term health consequences, such as coronary heart disease,3,4 chronic diseases,5 and Alzheimer disease.6
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CME Disclosure Statement: Unless noted, all individuals in control of content reported no relevant financial relationships. If applicable, all relevant financial relationships have been mitigated.
Accepted for Publication: July 21, 2021.
Published: September 23, 2021. doi:10.1001/jamanetworkopen.2021.26466
Open Access: This is an open access article distributed under the terms of the CC-BY License. © 2021 Agarwal S et al. JAMA Network Open.
Corresponding Author: Changwei Zhan, MS, Department of Real Estate, National University of Singapore, 15 Kent Ridge Dr, Singapore 119245 (email@example.com).
Author Contributions: Dr Agarwal had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis. Drs Agarwal, Luo, and Qin and Mr Zhan equally contributed to this paper.
Concept and design: Agarwal, Qin, Zhan.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Zhan.
Critical revision of the manuscript for important intellectual content: Agarwal, Huang, Luo, Qin.
Statistical analysis: Qin, Zhan.
Obtained funding: Agarwal, Qin.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was funded by grant MOE2019-SSRTG-024 from the Ministry of Education, Singapore.
Role of the Funder/Sponsor: The funder had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
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