Changes in Lifestyle Behaviors, Shopping Habits and Body Weight Among Adults in Cyprus and Greece During COVID-19 Lockdown: A Cross-Sectional Study

Background: During the COVID-19 pandemic, people were asked to stay at home. Places where people interacted such as schools, universities, and cafes were closed, and all gatherings were forbidden. Only stores offering fast-moving consumer goods were open, so citizens could purchase all food categories. The aim of this cross-sectional study was to investigate the effect of the COVID-19 lockdown on the eating and buying habits of consumers in Cyprus and Greece, and any changes in their lifestyles. Methods: An online survey including 1011 participants took place using an electronic questionnaire. Results: The results showed that lockdown significantly affected individuals by increasing weight gain (p < 0.01). The explanatory investigation of related lifestyle habits and nutrition traits showed that the dietary patterns behind these changes included increased meal frequency (p < 0.05)—even without an increased appetite—and subsequent increases in both purchases (p < 0.05) and consumption of several food groups (p < 0.05). Moreover, even though exercise per se was not discontinued due to COVID-19, it was apparent that exercise type was altered to adapt to the relevant restrictions (p < 0.05). Conclusions: In conclusion, the COVID-19 lockdown significantly affected Cypriots and Greeks in many aspects like their eating behavior, food purchasing habits, and lifestyle, all resulting in increased weight and potentially adverse health outcomes.