{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T16:01:34Z","timestamp":1785427294387,"version":"3.56.0"},"reference-count":33,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2026,7,16]],"date-time":"2026-07-16T00:00:00Z","timestamp":1784160000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"CONTEMFood: Contaminants in Meat Replacement Products: A Contemporary Food Safety Perspective","award":["2024-1.2.3-HU-RIZONT-2024-00098"],"award-info":[{"award-number":["2024-1.2.3-HU-RIZONT-2024-00098"]}]},{"DOI":"10.13039\/501100019370","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia, I.P.","doi-asserted-by":"publisher","award":["UID\/04567\/2025"],"award-info":[{"award-number":["UID\/04567\/2025"]}],"id":[{"id":"10.13039\/501100019370","id-type":"DOI","asserted-by":"publisher"}]},{"award":["UID\/04567\/2025"],"award-info":[{"award-number":["UID\/04567\/2025"]}],"id":[{"id":"https:\/\/ror.org\/00snfqn58","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nutrients"],"abstract":"<jats:p>Background: Food Balance Sheets (FBS) are widely used to assess national food availability, monitor nutrition transitions, and support food and nutrition policies. However, methodological revisions may influence the comparability of food availability estimates and nutrient supply indicators over time. This study aimed to examine the methodological evolution of Portuguese FBS between 1963 and 2024 and to assess its implications for nutrition surveillance and food system monitoring. Methods: A retrospective documentary analysis was conducted using all official Portuguese FBS published by the National Statistics Institute between 1963 and 2024. Methodological characteristics were systematically compared across six reporting periods, including institutional frameworks, data sources, food classification systems, nutritional indicators, food availability equations, food loss estimation procedures, and nutrient conversion methods. Results: Substantial methodological developments were identified over the six-decade period. Portuguese FBS evolved from relatively simple food supply accounting systems towards increasingly standardized frameworks aligned with the Food and Agriculture Organization Supply and Utilization Accounts methodology. Major changes included the incorporation of food losses, animal feed, industrial uses, and seed utilization into food availability calculations; the expansion of reported nutritional indicators from energy, protein, and fat to include carbohydrates, vitamins, and minerals; and the progressive refinement of food classification systems. More recent editions also introduced additional nutritional indicators, enhancing the characterization of food availability and nutrient supply. These developments may have contributed to expanding the nutritional scope of Portuguese FBS, strengthening methodological standardization, and improving alignment with international standards. Conclusions: Over the last six decades, Portuguese FBS have undergone substantial methodological modernization and increasing alignment with international standards. Although FBS remain indirect measures of food consumption, their evolution has strengthened their value for population-level food availability analyses, nutrition surveillance, food system monitoring, and evidence-informed policymaking. The findings also highlight the importance of considering methodological changes when interpreting long-term trends in food availability and nutrient supply.<\/jats:p>","DOI":"10.3390\/nu18142341","type":"journal-article","created":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T00:55:59Z","timestamp":1784249759000},"page":"2341","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Six Decades of Methodological Evolution in Portuguese Food Balance Sheets: Implications for Nutrition Surveillance and Food System Monitoring"],"prefix":"10.3390","volume":"18","author":[{"given":"Beatriz","family":"Santos","sequence":"first","affiliation":[{"name":"ECTS (School of Health Sciences and Technologies), Lus\u00f3fona University, Campo Grande 376, 1749-024 Lisboa, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0828-3722","authenticated-orcid":false,"given":"Alexandra","family":"Bento","sequence":"additional","affiliation":[{"name":"Food and Nutrition Department, National Health Institute Doutor Ricardo Jorge, Av. Padre Cruz, 1649-016 Lisboa, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1238-1798","authenticated-orcid":false,"given":"Leandro","family":"Oliveira","sequence":"additional","affiliation":[{"name":"CBIOS (Research Center for Biosciences and Health Technologies), ECTS (School of Health Sciences and Technologies), Lus\u00f3fona University, Campo Grande 376, 1749-024 Lisboa, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9081-5160","authenticated-orcid":false,"given":"Pedro","family":"Nabais","sequence":"additional","affiliation":[{"name":"Food Risks Unit, Economic and Food Safety Authority (ASAE), 1649-038 Lisboa, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5286-2249","authenticated-orcid":false,"given":"Ant\u00f3nio","family":"Raposo","sequence":"additional","affiliation":[{"name":"CBIOS (Research Center for Biosciences and Health Technologies), ECTS (School of Health Sciences and Technologies), Lus\u00f3fona University, Campo Grande 376, 1749-024 Lisboa, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9887-0973","authenticated-orcid":false,"given":"Maria do C\u00e9u","family":"Costa","sequence":"additional","affiliation":[{"name":"CBIOS (Research Center for Biosciences and Health Technologies), ECTS (School of Health Sciences and Technologies), Lus\u00f3fona University, Campo Grande 376, 1749-024 Lisboa, Portugal"},{"name":"Centro de Investiga\u00e7\u00e3o do IPLuso (CIPLuso), Polytechnic Institute of Lusophony, ERISA\u2014Escola Superior de Sa\u00fade Ribeiro Sanches, Rua do Telhal aos Olivais, 8, 1950-396 Lisboa, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,7,16]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"447","DOI":"10.1016\/S0140-6736(18)31788-4","article-title":"Food in the Anthropocene: The EAT-Lancet Commission on Healthy Diets from Sustainable Food Systems","volume":"393","author":"Willett","year":"2019","journal-title":"Lancet"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"198","DOI":"10.1038\/s43016-021-00225-9","article-title":"Food systems are responsible for a third of global anthropogenic GHG emissions","volume":"2","author":"Crippa","year":"2021","journal-title":"Nat. Food"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"505","DOI":"10.1038\/s43016-026-01360-x","article-title":"Principles for guiding and unlocking transformation of the European Union agrifood system","volume":"7","author":"Olesen","year":"2026","journal-title":"Nat. Food"},{"key":"ref_4","unstructured":"Food and Agriculture Organization (2013). FAO Methodology for the Compilation of Supply Utilization Accounts and Food Balance Sheets, FAO."},{"key":"ref_5","unstructured":"Food and Agriculture Organization (2001). Food Balance Sheets: A Handbook, FAO."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"1038","DOI":"10.3945\/ajcn.114.087403","article-title":"Assessing global dietary habits: A comparison of national estimates from the FAO and the Global Dietary Database","volume":"101","author":"Khatibzadeh","year":"2015","journal-title":"Am. J. Clin. Nutr."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"989","DOI":"10.1093\/nutrit\/nuaa023","article-title":"A review of the uses and reliability of food balance sheets in health research","volume":"78","author":"Thar","year":"2020","journal-title":"Nutr. Rev."},{"key":"ref_8","unstructured":"Instituto Nacional de Estat\u00edstica (2026, May 20). Balan\u00e7a Alimentar Portuguesa: 2016\u20132020, Available online: https:\/\/www.ine.pt\/xportal\/xmain?xpid=INE&xpgid=ine_publicacoes&PUBLICACOESpub_boui=437140067&PUBLICACOESmodo=2."},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Smith, M.R., Micha, R., Golden, C.D., Mozaffarian, D., and Myers, S.S. (2016). Global expanded nutrient supply (GENuS) model: A new method for estimating the global dietary supply of nutrients. PLoS ONE, 11.","DOI":"10.1371\/journal.pone.0146976"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"175","DOI":"10.1177\/0379572117752986","article-title":"Global dietary surveillance: Data gaps and challenges","volume":"39","author":"Micha","year":"2018","journal-title":"Food Nutr. Bull."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"289","DOI":"10.1093\/ajcn\/84.2.289","article-title":"Global nutrition dynamics: The world is shifting rapidly toward a diet linked with noncommunicable diseases","volume":"84","author":"Popkin","year":"2006","journal-title":"Am. J. Clin. Nutr."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"936","DOI":"10.1017\/S1368980018003762","article-title":"Ultra-processed foods: What they are and how to identify them","volume":"22","author":"Monteiro","year":"2019","journal-title":"Public Health Nutr."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"446","DOI":"10.2471\/BLT.14.150565","article-title":"Increased food energy supply as a major driver of the obesity epidemic: A global analysis","volume":"93","author":"Vandevijvere","year":"2015","journal-title":"Bull. World Health Organ."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"1600","DOI":"10.1017\/S0007114523003045","article-title":"Trends in ultra-processed food availability and its association with diet-related non-communicable disease health indicators in the Portuguese population","volume":"131","author":"Afonso","year":"2024","journal-title":"Br. J. Nutr."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"6868","DOI":"10.1073\/pnas.1117054109","article-title":"Global changes in diets and the consequences for land requirements for food","volume":"109","author":"Kastner","year":"2012","journal-title":"Proc. Natl. Acad. Sci. USA"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"2277","DOI":"10.1017\/S1368980017001173","article-title":"Dietary gap assessment: An approach for evaluating whether a country\u2019s food supply can support healthy diets at the population level","volume":"20","author":"Kuyper","year":"2017","journal-title":"Public Health Nutr."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"e121","DOI":"10.1017\/S1368980025100633","article-title":"Mismatches between UK food supply and dietary guidelines: A dietary gap assessment","volume":"28","author":"Kelly","year":"2025","journal-title":"Public Health Nutr."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"1322","DOI":"10.1017\/S1368980016003177","article-title":"Med Diet 4.0: The Mediterranean diet with four sustainable benefits","volume":"20","author":"Dernini","year":"2017","journal-title":"Public Health Nutr."},{"key":"ref_19","doi-asserted-by":"crossref","unstructured":"Serra-Majem, L., Tomaino, L., Dernini, S., Berry, E.M., Lairon, D., Ngo de la Cruz, J., Bach-Faig, A., Donini, L.M., Medina, F.X., and Belahsen, R. (2020). Updating the Mediterranean diet pyramid towards sustainability: Focus on environmental concerns. Int. J. Environ. Res. Public Health, 17.","DOI":"10.3390\/ijerph17238758"},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"53","DOI":"10.1079\/PHN2005757","article-title":"Changes in food supply in Mediterranean countries from 1961 to 2001","volume":"9","author":"Berenguer","year":"2006","journal-title":"Public Health Nutr."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"418","DOI":"10.1007\/s00394-007-0681-8","article-title":"Trends in food availability in Portugal in 1966\u20132003: Comparison with other Mediterranean countries","volume":"46","author":"Chen","year":"2007","journal-title":"Eur. J. Nutr."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"83","DOI":"10.1038\/s41430-018-0313-9","article-title":"Worldwide adherence to Mediterranean diet between 1960 and 2011","volume":"72","author":"Vilarnau","year":"2019","journal-title":"Eur. J. Clin. Nutr."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"9139","DOI":"10.3390\/nu7115459","article-title":"Definition of the Mediterranean diet: A literature review","volume":"7","author":"Davis","year":"2015","journal-title":"Nutrients"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"549","DOI":"10.1111\/joim.13333","article-title":"The Mediterranean diet and health: A comprehensive overview","volume":"290","author":"Willett","year":"2021","journal-title":"J. Intern. Med."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"e25","DOI":"10.1016\/j.pbj.0000000000000025","article-title":"Portugal nutritional transition during the last four decades: 1974\u20132011","volume":"3","author":"Bento","year":"2018","journal-title":"Porto Biomed. J."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"10","DOI":"10.21011\/apn.2017.1603","article-title":"Portugal segue a tend\u00eancia global: Uma an\u00e1lise da evolu\u00e7\u00e3o das disponibilidades alimentares e nutricionais e do produto interno bruto ao longo de quatro d\u00e9cadas","volume":"16","author":"Bento","year":"2019","journal-title":"Acta Port. Nutr."},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Oliveira, L., Saraiva, A., Lima, M.J., Teixeira-Lemos, E., Alhaji, J.H., Carrascosa, C., and Raposo, A. (2024). Mediterranean food pattern adherence in a female-dominated sample of health and social sciences university students: Analysis from a perspective of sustainability. Nutrients, 16.","DOI":"10.3390\/nu16223886"},{"key":"ref_28","unstructured":"Instituto Nacional de Estat\u00edstica (2026, May 20). A Balan\u00e7a Alimentar do Continente Portugu\u00eas: Per\u00edodo 1963\u20131975, Available online: https:\/\/www.ine.pt\/xportal\/xmain?xpid=INE&xpgid=ine_publicacoes&PUBLICACOESpub_boui=265129110&PUBLICACOESmodo=2."},{"key":"ref_29","unstructured":"Instituto Nacional de Estat\u00edstica (2026, May 20). Balan\u00e7a Alimentar Portuguesa: 1980\u20131992, Available online: https:\/\/www.ine.pt\/xportal\/xmain?xpid=INE&xpgid=ine_publicacoes&PUBLICACOESpub_boui=284872873&PUBLICACOESmodo=2."},{"key":"ref_30","unstructured":"Instituto Nacional de Estat\u00edstica (2026, May 20). Balan\u00e7a Alimentar Portuguesa: 1990\u20131997, Available online: https:\/\/www.ine.pt\/xportal\/xmain?xpid=INE&xpgid=ine_publicacoes&PUBLICACOESpub_boui=375238&PUBLICACOESmodo=2."},{"key":"ref_31","unstructured":"Instituto Nacional de Estat\u00edstica (2026, May 20). Balan\u00e7a Alimentar Portuguesa: 2012\u20132016, Available online: https:\/\/www.ine.pt\/xportal\/xmain?xpid=INE&xpgid=ine_publicacoes&PUBLICACOESpub_boui=289818234&PUBLICACOESmodo=2."},{"key":"ref_32","unstructured":"Instituto Nacional de Estat\u00edstica (2026, May 20). Balan\u00e7a Alimentar Portuguesa: 2020\u20132024, Available online: https:\/\/www.ine.pt\/xportal\/xmain?xpid=INE&xpgid=ine_publicacoes&PUBLICACOESpub_boui=66303083&PUBLICACOESmodo=2."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"350","DOI":"10.12688\/wellcomeopenres.17245.1","article-title":"Discrepancies between two long-term dietary datasets in the United Kingdom","volume":"6","author":"Smith","year":"2021","journal-title":"Wellcome Open Res."}],"container-title":["Nutrients"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-6643\/18\/14\/2341\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T05:35:27Z","timestamp":1784266527000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-6643\/18\/14\/2341"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,7,16]]},"references-count":33,"journal-issue":{"issue":"14","published-online":{"date-parts":[[2026,7]]}},"alternative-id":["nu18142341"],"URL":"https:\/\/doi.org\/10.3390\/nu18142341","relation":{},"ISSN":["2072-6643"],"issn-type":[{"value":"2072-6643","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,7,16]]}}}