Changes in Dietary Behaviours during the COVID-19 Outbreak Confinement in the Spanish COVIDiet Study

Celia Rodríguez-Pérez, Esther Molina-Montes, Vito Verardo, Reyes Artacho, Belén García-Villanova, Eduardo Jesús Guerra-Hernández, María Dolores Ruíz-López, Celia Rodríguez-Pérez, Esther Molina-Montes, Vito Verardo, Reyes Artacho, Belén García-Villanova, Eduardo Jesús Guerra-Hernández, María Dolores Ruíz-López

Abstract

The aim of this study was to evaluate whether dietary behaviours of the Spanish adult population were changed during the COVID-19 outbreak confinement. For that purpose, an online questionnaire, based on 44 items including socio-demographic data, Mediterranean diet (MedDiet) Adherence Screener (MEDAS) as a reference of a healthy diet, processed foods intake, changes in their usual food choices and weight gain was distributed using social media and snowball sampling. A total of 7514 participants (37% aged below 35 years, 70.6% female, 77.9% university-level education or higher) from all the Spanish territory completed the questionnaire. Results outlined healthier dietary behaviours during the confinement when compared to previous habits. Overall, the MEDAS score (ranging from 0 to 14, whereby higher a scoring reflects greater adherence to the MedDiet) increased significantly from 6.53 ± 2 to 7.34 ± 1.93 during the confinement. Multivariate logistic regression models, adjusted for age, gender, region and other variables, showed a statistically significant higher likelihood of changing the adherence to the MedDiet (towards an increase in adherence) in those persons who decreased the intake of fried foods, snacks, fast foods, red meat, pastries or sweet beverages, but increased MedDiet-related foods such as olive oil, vegetables, fruits or legumes during the confinement. COVID-19 confinement in Spain has led to the adoption of healthier dietary habits/behaviours in the studied population, as reflected by a higher adherence to the MedDiet. This improvement, if sustained in the long-term, could have a positive impact on the prevention of chronic diseases and COVID-19-related complications.

Keywords: COVID-19; Mediterranean diet; confinement; dietary behaviours; fried foods; fruits; legumes; olive oil; snacking; vegetables.

Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Adherence to the MedDiet before (B, D and F) and during (A, C and E) the Spanish COVID-19 confinement by subgroups of age (A and B), region (C and D) and educational level (E and F). In the box plots, the boundary of the box closest to zero indicates the 25th percentile, a colour line within the box marks the median, and the boundary of the box farthest from zero indicates the 75th percentile. Points above and below the box indicate the 10th and 90th percentiles; those above and below the whiskers indicate outliers. Numbers of included participants per group are shown in Table 1 and Table 2. Differences in mean adherence by groups were evaluated by means of the Kruskal-Wallis test.

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Source: PubMed

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