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.
Highlights
The 2019 coronavirus (COVID-19) pandemic, caused by SARS-CoV-2, has expanded from Wuhan, the capital city of Hubei Province in China to a growing number of countries [1]
Results showed that higher intake of Mediterranean diet (MedDiet) typical foods such as vegetables (OR: 8.08, 95% Confidence Intervals (CIs): 6.84–9.50), fish (OR: 6.17, 95% CI: 4.98–7.69), olive oil (OR: 5.21, 95% CI: 4.24–6.39), and legumes (OR: 4.71, 95% CI: 4.04–5.46) during the COVID-19 confinement, were associated with a higher likelihood of changing the adherence to the MedDiet
A statistically significant interaction by gender was observed between change in adherence to the MedDiet and the intakes of fruits, vegetables and olive oil (p-value for interaction = 0.016, 0.001 and 0.006, respectively)
Summary
The 2019 coronavirus (COVID-19) pandemic, caused by SARS-CoV-2, has expanded from Wuhan, the capital city of Hubei Province in China to a growing number of countries [1]. Spain, according to the latest Coronavirus disease 2019 situation report [2]. People were allowed to leave home to buy essentials from supermarkets and pharmacies, go to work in those cases in which work in-person was essential (pharmacies, healthcare, supermarkets, etc.) while maintaining social distance. This implementation firstly caused panic buying and disruptions to food supply leading to shortages of some staple foods in most supermarkets and grocery stores. Despite that the situation seemed to be normalized, not all food and food products were available at the supermarkets, making senior citizens even more vulnerable
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