{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T08:06:18Z","timestamp":1784275578062,"version":"3.55.0"},"reference-count":0,"publisher":"Springer Science and Business Media LLC","license":[{"start":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T00:00:00Z","timestamp":1784246400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T00:00:00Z","timestamp":1784246400000},"content-version":"am","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"name":"University Foundation Belgium","award":["WA-0679"],"award-info":[{"award-number":["WA-0679"]}]},{"name":"ARC Consolidator","award":["no grant number"],"award-info":[{"award-number":["no grant number"]}]},{"DOI":"10.13039\/501100000289","name":"Cancer Research UK","doi-asserted-by":"publisher","award":["C1417\/A22962"],"award-info":[{"award-number":["C1417\/A22962"]}],"id":[{"id":"10.13039\/501100000289","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Int J Behav Nutr Phys Act"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>(Un)healthy eating behaviours may vary by moment and psychological context. Ecological momentary assessment (EMA) is well-suited to study within-person, momentary, and context-dependent behaviours and correlates, as it uses repeated sampling of real-time experiences. Insights in such within-person relations could inform ecological momentary interventions. A systematic review and meta-analysis of these insights in a healthy population is, however, currently lacking. The aim of this systematic review and meta-analysis was to synthesise within-person associations between psychological factors and eating behaviour in healthy adults, and summarise methodological aspects of these studies.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Observational and experimental studies on psychological predictors of (un)healthy eating behaviours in adult healthy populations were included, based on a systematic search of Ovid MEDLINE, Embase, PsycINFO and Web of Science. Meta-analysis of \u2265\u20095 studies per predictor\/outcome was performed in\n                      <jats:italic>metafor<\/jats:italic>\n                      R-package.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      During title and abstract screening,\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u20092046 articles were reviewed (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u2009119 from overarching review,\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u20091927 from updated search),\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u2009208 were screened in full-text screening. Forty-nine (review) and fifteen studies (meta-analysis) were included. Most studies were observational, and used fixed time-based sampling, and most assessed food eaten since the last prompt\/timeframe. Various measures reported on study adherence (between 79 and 90%). Only around half reported on reliability and\/or validity of the predictors or outcomes, most often referring to an adaptation of non-EMA scales, with little information of their exact adaptation. Due to high diversity in conceptualization and reporting of effect sizes, not all could be meta-analyzed. Meta-analyses showed negative psychological triggers (NPT, e.g., negative affect, daily stress, and ruminations) predicted lower levels of healthy eating behaviour (\u03b2=-0.007,\n                      <jats:italic>p<\/jats:italic>\n                      =.028, k\u2009=\u20098, n total\u2009=\u20091,489), higher levels of unhealthy eating behaviour (\u03b2\u2009=\u20090.054,\n                      <jats:italic>p<\/jats:italic>\n                      =.022, k\u2009=\u20096, n total\u2009=\u20091,578), but had no significant association with unhealthy behaviour event occurrence (logOR=0.469,\n                      <jats:italic>p<\/jats:italic>\n                      =.095, k\u2009=\u20095, n total\u2009=\u2009934). All meta-analyses were characterized by small effect sizes and important heterogeneity.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Associations at the within level of NPT with (un)healthy eating highlight their potential utility for inclusion in health promoting ecological momentary interventions. Nevertheless, the methodological and conceptual heterogeneity of the studies highlight a need for harmonized practices, including broader adoption of reporting guidelines, to facilitate cumulative knowledge in the field.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s12966-026-01949-2","type":"journal-article","created":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T07:34:50Z","timestamp":1784273690000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Within-person associations of psychological factors with healthy or unhealthy diet in EMA studies in general adult populations: a systematic review and meta-analysis"],"prefix":"10.1186","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7473-140X","authenticated-orcid":false,"given":"A.","family":"DeSmet","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D.","family":"Powell","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"B.","family":"Asiamah-Asare","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D.","family":"Kwasnicka","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"F.","family":"Naughton","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"V.","family":"Schneider","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.","family":"Keller","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G.","family":"ten Hoor","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"O.","family":"Perski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D.","family":"Kale","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P.","family":"G\u00e9rain","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,7,17]]},"container-title":["International Journal of Behavioral Nutrition and Physical Activity"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/article\/10.1186\/s12966-026-01949-2","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T07:34:51Z","timestamp":1784273691000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1186\/s12966-026-01949-2"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,7,17]]},"references-count":0,"alternative-id":["1949"],"URL":"https:\/\/doi.org\/10.1186\/s12966-026-01949-2","relation":{},"ISSN":["1479-5868"],"issn-type":[{"value":"1479-5868","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,7,17]]},"assertion":[{"value":"30 December 2025","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"2 July 2026","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"17 July 2026","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"Not applicable.","order":1,"name":"Ethics","label":"Ethics approval and consent to participate","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"Not applicable.","order":2,"name":"Ethics","label":"Consent for publication","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors declare no competing interests.","order":3,"name":"Ethics","label":"Competing interests","group":{"name":"EthicsHeading","label":"Declarations"}}]}}