Young Adults' Use of Mobile Food Delivery Applications and the Potential Impacts on Diets during COVID-19 Pandemic in Singapore: A Mixed Methods Study.

Abstract

Poor diet contributes significantly to the development of non-communicable diseases (NCDs). In Singapore, it is recommended to consume at least two servings of fruits and vegetables (FV) daily to reduce the risk of developing NCDs. However, the adherence rate among young adults is low. The COVID-19 pandemic has led to frequent users of Mobile Food Delivery Applications (MFDAs) adopting unhealthy eating habits including high consumption of sugar-sweetened beverages (SSBs), making it crucial to gain a deeper understanding of the underlying factors driving their usage patterns. This study aimed to examine the usage patterns of MFDAs among young adults during the COVID-19 pandemic; investigate the association between MFDA usage and socio-demographic factors, dietary factors, and body mass index (BMI); identify the underlying reasons for the observed usage patterns of MFDAs among users; compare the influences of MFDA usage between frequent and infrequent users. A sequential mixed methods design was used, involving an online survey and in-depth interviews with a subset of questionnaire respondents. Poisson regression and thematic analysis were employed to analyze the quantitative and the qualitative data respectively. The quantitative results revealed that 41.7% (150/360) of the participants reported using MFDAs frequently, defined as at least once-a-week use. Although not significant, the study found that frequent users were less likely to consume two servings of vegetables per day and more likely to drink SSBs. Nineteen individuals who had participated in the quantitative component were selected for and completed the interviews. Qualitative analysis identified four primary themes: deliberations about other sources of meals versus meals purchased via MFDAs, convenience is vital, preference for unhealthy meals ordered from MFDAs most of the time, and cost is king. Before making any purchase, MFDA users consider all these themes at the same time, with the cost being the most significant influential factor. A conceptual framework based on these themes is presented. Lack of culinary skills and COVID-19 restrictions were also found to influence frequent usage. The study suggests that interventions should focus on promoting healthy dietary patterns among young adults who frequently use MFDAs. Teaching cooking skills, especially among young males, and time management skills could be useful to reduce reliance on MFDAs. The study highlights the need for public health policies that make healthy food options more affordable and accessible. Given the unintended changes in behavior during the pandemic such as reduced physical activity or sedentary behavior and altered eating pattern, it is essential to consider behavior change in interventions aimed at promoting healthy lifestyles among young adults who frequently use MFDAs. Further research is needed to evaluate the effectiveness of interventions during COVID-19 restrictions and to assess the impact of the "new normal" post-COVID on dietary patterns and physical activity levels.