{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T18:02:09Z","timestamp":1790359329112,"version":"4.1.0"},"reference-count":37,"publisher":"Public Library of Science (PLoS)","issue":"9","license":[{"start":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T00:00:00Z","timestamp":1790294400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS One"],"abstract":"<jats:sec id=\"sec001\">\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>Accurate dietary intake assessment remains challenging, particularly for portion-size estimation, and context-specific photographic aids remain limited in Argentina. This study aimed to develop an open-access digital atlas of foods and recipes consumed in Argentina, integrating portion-size photographs and nutrient-composition data, and to describe its performance for food and recipe retrieval and visual portion-size matching under controlled direct-observation conditions.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"sec002\">\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>The Smart24Food atlas was developed as a digital resource integrating food photographs, standardized recipes, and nutrient-composition information. A controlled direct-observation study in a university setting included 108 participants, mostly young adults, completing 20 tasks: seven packaged-product selection tasks and 13 visual portion-matching tasks. Exact matching was analyzed using cross-classified logistic mixed-effects models, while weight-based performance was assessed using linear mixed-effects models and repeated-measures Bland\u2013Altman analysis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"sec003\">\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The atlas contains 3,273 photographs representing 998 distinct foods through 1,052 presentation-specific items, with nutrient-composition information for up to 53 components. Food or recipe retrieval was successful in 99.81% of tasks (2,156\/2,160), and overall exact matching was 86.5% (1,869\/2,160). Food-level heterogeneity was greater than participant-level heterogeneity, whereas food category and task type were not significantly associated with exact matching. Across 1,404 visual portion-matching observations, mean signed error was \u22121.34 g (95% CI: \u22124.68 to 2.00; p\u2009=\u20090.447), with no evidence that signed error varied systematically with served portion weight across the evaluated foods (B=\u22120.011 g\/g; p\u2009=\u20090.703). The 95% Bland\u2013Altman limits of agreement ranged from \u221233.44 to 30.76 g.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"sec004\">\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The Smart24Food atlas is an open-access resource integrating photographic portion references with nutrient-composition information for foods and recipes consumed in Argentina. Under controlled direct-observation conditions, participants showed high retrieval and exact-match performance, with no evidence of systematic mean bias in visual portion matching. Further studies in more diverse populations and routine dietary-assessment contexts are needed.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1371\/journal.pone.0359331","type":"journal-article","created":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T17:42:02Z","timestamp":1790358122000},"page":"e0359331","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":0,"title":["Development of an open-access food atlas with nutrient composition and recipes in Argentina: The Smart24Food Atlas"],"prefix":"10.1371","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0300-6622","authenticated-orcid":true,"given":"Ismael Alejandro","family":"Contreras-Guill\u00e9n","sequence":"first","affiliation":[{"name":"Universidad Adventista del Plata","place":["Libertador San Mart\u00edn, Argentina"],"department":["Interdisciplinary Center for Research in Health and Behavioral Sciences, School of Medicine (CIICSAC)"]},{"name":"Universidad Nacional de Entre R\u00edos","place":["Oro Verde, Argentina"],"department":["Faculty of Engineering"]},{"name":"National Scientific and Technical Research Council (CONICET)","place":["Buenos Aires, Argentina"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sara","family":"Leeson","sequence":"additional","affiliation":[{"name":"Universidad Adventista del Plata","place":["Libertador San Mart\u00edn, Argentina"],"department":["Interdisciplinary Center for Research in Health and Behavioral Sciences, School of Medicine (CIICSAC)"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1530-7497","authenticated-orcid":true,"given":"Rocio Victoria","family":"Gili","sequence":"additional","affiliation":[{"name":"Universidad Adventista del Plata","place":["Libertador San Mart\u00edn, Argentina"],"department":["Interdisciplinary Center for Research in Health and Behavioral Sciences, School of Medicine (CIICSAC)"]},{"name":"National Scientific and Technical Research Council (CONICET)","place":["Buenos Aires, Argentina"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bel\u00e9n","family":"Carlino","sequence":"additional","affiliation":[{"name":"Universidad Adventista del Plata","place":["Libertador San Mart\u00edn, Argentina"],"department":["Interdisciplinary Center for Research in Health and Behavioral Sciences, School of Medicine (CIICSAC)"]},{"name":"National Scientific and Technical Research Council (CONICET)","place":["Buenos Aires, Argentina"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Emanuel","family":"Irrazabal","sequence":"additional","affiliation":[{"name":"National Scientific and Technical Research Council (CONICET)","place":["Buenos Aires, Argentina"]},{"name":"National University of NorthEast (UNNE)","place":["Corrientes, Argentina"],"department":["Faculty of Exact and Natural Sciences and Surveying"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sandaly Oliveira da Silva","family":"Pacheco","sequence":"additional","affiliation":[{"name":"Universidad Adventista del Plata","place":["Libertador San Mart\u00edn, Argentina"],"department":["Interdisciplinary Center for Research in Health and Behavioral Sciences, School of Medicine (CIICSAC)"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1042-9428","authenticated-orcid":true,"given":"Fabio Juliano","family":"Pacheco","sequence":"additional","affiliation":[{"name":"Universidad Adventista del Plata","place":["Libertador San Mart\u00edn, Argentina"],"department":["Interdisciplinary Center for Research in Health and Behavioral Sciences, School of Medicine (CIICSAC)"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2026,9,25]]},"reference":[{"key":"pone.0359331.ref001","article-title":"Dietary assessment methods in epidemiologic studies","volume":"36","author":"J-S Shim","year":"2014","journal-title":"Epidemiol Health"},{"key":"pone.0359331.ref002","doi-asserted-by":"crossref","first-page":"101","DOI":"10.1079\/PHN2003584","article-title":"A life course approach to diet, nutrition and the prevention of chronic diseases","volume":"7","author":"I Darnton-Hill","year":"2004","journal-title":"Public Health Nutr"},{"key":"pone.0359331.ref003","article-title":"Diets, Fruit and Vegetable Intake and Nutritional Status Among Children, Adolescents and Adults in the Philippines: A Scoping Review","author":"TJ Smith","year":"2024","journal-title":"Matern Child Nutr"},{"key":"pone.0359331.ref004","volume-title":"Noncommunicable Diseases Country Profiles 2018","author":"World Health Organization","year":"2018"},{"key":"pone.0359331.ref005","volume-title":"4\u00b0 Encuesta Nacional de Factores de Riesgo. 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