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Factors Associated with Dietary Change since the Outbreak of COVID-19 in Japan

Department of Food and Health Sciences, Faculty of Health and Human Development, The University of Nagano, Nagano City, Nagano 380-8525, Japan
Natural Science Division, Faculty of Core Research, Ochanomizu University, Bunkyo-ku, Tokyo 112-8610, Japan
Department of Health and Nutrition, Faculty of Human Life Studies, University of Niigata Prefecture, Nagano City, Niigata 950-8680, Japan
Department of Health Promotion, National Institute of Public Health, Wako-shi, Saitama 351-0197, Japan
Department of Health Communication, School of Public Health, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
Department of Food Function and Labeling, National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Shinjuku-ku, Tokyo 162-8636, Japan
Author to whom correspondence should be addressed.
Academic Editor: Santiago Navas-Carretero
Nutrients 2021, 13(6), 2039;
Received: 17 May 2021 / Revised: 9 June 2021 / Accepted: 11 June 2021 / Published: 14 June 2021
(This article belongs to the Section Nutrition and Public Health)
In Japan, dietary habits have greatly changed since the coronavirus disease (COVID-19) outbreak; we examined factors related to dietary changes. An online cross-sectional questionnaire survey was conducted in November 2020 among 6000 Japanese adults (aged 20–64 years) registered with a research company and gathered data on demographics, socioeconomic factors, medical history, COVID-19 status of the respondent’s family and neighbors, fear of COVID-19, and changes in lifestyle and dietary habits since the COVID-19 outbreak. To the question “Have you made healthier changes to your dietary habits compared with the dietary habits before the spread of COVID-19 (1 year ago, November 2019)?”, 1215 (20.3%), 491 (8.2%), and 4294 (71.6%) participants answered that their dietary habits were healthier, unhealthier, and unchanged, respectively. Healthier and unhealthier dietary habits were associated with greater fear of COVID-19, altered exercise and sleep times, and smoking. Unhealthy habits were positively associated with living alone, decreasing household income, colleagues with COVID-19, stress, and weight loss/gain. Annual household income, changing household income, COVID-19 in friends, health literacy, exercise frequency, weight loss, and starting smoking were positively associated with healthier dietary changes. The generalizability of these results and strategies to inculcate healthy diets in this “new normal” should be investigated. View Full-Text
Keywords: dietary habits; lifestyle; COVID-19 dietary habits; lifestyle; COVID-19
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MDPI and ACS Style

Shimpo, M.; Akamatsu, R.; Kojima, Y.; Yokoyama, T.; Okuhara, T.; Chiba, T. Factors Associated with Dietary Change since the Outbreak of COVID-19 in Japan. Nutrients 2021, 13, 2039.

AMA Style

Shimpo M, Akamatsu R, Kojima Y, Yokoyama T, Okuhara T, Chiba T. Factors Associated with Dietary Change since the Outbreak of COVID-19 in Japan. Nutrients. 2021; 13(6):2039.

Chicago/Turabian Style

Shimpo, Misa, Rie Akamatsu, Yui Kojima, Tetsuji Yokoyama, Tsuyoshi Okuhara, and Tsuyoshi Chiba. 2021. "Factors Associated with Dietary Change since the Outbreak of COVID-19 in Japan" Nutrients 13, no. 6: 2039.

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