The impact of COVID-19 hygienic measures on food choice and eating behaviour

The COVID-19 pandemic has led to several changes that have affected not only emotional and psychological well-being but also eating behavior. Herein, we sought to evaluate if depicting pandemic-related sanitary measures in a food consumption video would impact food appraisal,
decreasing food attractiveness and the desire to eat. Participants performed, on two different days,
an online protocol in which foods presented in a video, and following, in pictures, were evaluated
regarding visual aspect, expected smell and taste, and desire to eat. The videos presented each day
differed only regarding the presence/absence of sanitary elements adopted during the pandemic,
composing COVID/non-COVID conditions. For both conditions, sweet and high-calorie foods were
better evaluated when compared to salty and low-calorie foods, with the sweet food evaluation higher
for the non-COVID condition when compared to the COVID-condition. Only for the non-COVID
condition was the reported desire to eat higher immediately after the video, and for both conditions,
it was higher at the end of the task when compared to the baseline. Correlation analysis suggests
that depression and anxiety symptoms may reduce the smell appreciation of foods presented in the
pandemic scenario. We conclude that food perception is affected by the presence of the sanitary
measures adopted during the pandemic by reducing the desire to eat and food hedonic appreciation
and, further, that depression and anxiety symptoms may be related to a higher negative impact of the
pandemic on eating behavior.
O.M.L. is supported by the Portuguese Foundation for Science and Technology and the Portuguese Ministry of Science, Technology and Higher Education, through the national funds, within the scope of the Transitory Disposition of the Decree No. 57/2016, of 29th of August, amended
by Law No. 57/2017 of 19 July (Ref.: SFRH/BPD/72710/2010). This study was conducted at the Psychology Research Centre (PSI/01662), School of Psychology, University of Minho, supported by the Foundation for Science and Technology (FCT) through the Portuguese State Budget (Ref.:
UIDB/PSI/01662/2020).