{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T21:08:31Z","timestamp":1792789711190,"version":"4.5.0"},"reference-count":79,"publisher":"MDPI AG","issue":"18","license":[{"start":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T00:00:00Z","timestamp":1789516800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Polish Ministry of Education and Science"},{"name":"Institute of Human Nutrition Sciences, Warsaw University of Life Sciences","id":[{"id":"https:\/\/ror.org\/05srvzs48","id-type":"ROR","asserted-by":"crossref"}]},{"id":[{"id":"https:\/\/ror.org\/05srvzs48","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nutrients"],"abstract":"<jats:p>Background\/Objectives: Food behaviors in the general population and among adolescents during the COVID-19 pandemic have been well documented through numerous comparisons with the pre-pandemic period, but the post-pandemic situation has not yet been sufficiently described. The aim of this study was to compare post-pandemic vs. pandemic food behaviors in a national sample of Polish adolescents within the framework of the PLACE-19 Study. Methods: A population of n = 1019 secondary school adolescents recruited based on a quota sampling of Polish secondary schools was included in the analysis (n = 690 female, n = 329 male). Data were gathered using the Computer-Assisted Web Interview (CAWI) technique, and food behaviors were assessed using the Food Behavior Checklist (FBC). Analyses were conducted for the fruit and vegetable quantity, fruit and vegetable variety, sweetened beverage, milk\/dairy, healthy fat, diet quality, and food security subscales, as well as questions related to fruit and vegetable and total scale. Results: In the total studied population as well as in subgroups of female and male individuals, higher scores were observed in the post-pandemic period than in the pandemic period for the fruit and vegetable quantity subscale (p &lt; 0.005), the fruit and vegetable variety subscale (p &lt; 0.001), and questions related to fruit and vegetable (p &lt; 0.001). At the same time, lower scores in the post-pandemic period than in the pandemic period were observed for the milk\/dairy subscale (p &lt; 0.05) and the healthy fat subscale (p &lt; 0.05). At a one-year interval, 43.7% of the population showed an improvement in their total FBC score, whereas 40.3% showed a worsening, while a significant association was observed for sex (p = 0.0114), with females more frequently presenting total FBC score improvement than males (44.9% vs. 41.0%). Conclusions: Food behaviors among adolescents changed after the COVID-19 pandemic, which may be related to both internal factors (including the level of experienced stress) and external factors (including exposure to peers). The novel situation observed in the post-pandemic period may warrant further analysis to determine whether these pandemic-associated changes will persist and to identify potential new challenges.<\/jats:p>","DOI":"10.3390\/nu18183029","type":"journal-article","created":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T13:50:27Z","timestamp":1789566627000},"page":"3029","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Post-Pandemic vs. Pandemic Food Behaviors in a National Sample of Polish Adolescents: The PLACE-19 Study"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0784-3604","authenticated-orcid":false,"given":"Dominika","family":"Guzek","sequence":"first","affiliation":[{"name":"Department of Food Market and Consumer Research, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (SGGW-WULS), 159C Nowoursynowska Street, 02-776 Warsaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5818-9884","authenticated-orcid":false,"given":"Dominika","family":"Skolmowska","sequence":"additional","affiliation":[{"name":"Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (SGGW-WULS), 159C Nowoursynowska Street, 02-776 Warsaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8588-7357","authenticated-orcid":false,"given":"Dominika","family":"G\u0142\u0105bska","sequence":"additional","affiliation":[{"name":"Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (SGGW-WULS), 159C Nowoursynowska Street, 02-776 Warsaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,9,16]]},"reference":[{"key":"ref_1","unstructured":"(2026, August 25). 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