{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T20:10:34Z","timestamp":1788379834236,"version":"build-2803163510"},"reference-count":53,"publisher":"Cambridge University Press (CUP)","license":[{"start":{"date-parts":[[2020,10,12]],"date-time":"2020-10-12T00:00:00Z","timestamp":1602460800000},"content-version":"unspecified","delay-in-days":285,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Nutr Sci"],"published-print":{"date-parts":[[2020]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    The study aimed to estimate vitamin D intake and plasma\/serum 25-hydroxyvitamin D (25(OH)D) concentrations, investigate determinants of 25(OH)D concentrations and compare two 25(OH)D assays. We conducted two nationwide cross-sectional studies in Sweden with 206 school children aged 10\u201312 years and 1797 adults aged 18\u201380 years (\n                    <jats:italic>n<\/jats:italic>\n                    268 provided blood samples). A web-based dietary record was used to assess dietary intake. Plasma\/serum 25(OH)D was analysed by liquid chromatography-mass spectrometry (LC-MS) and immunoassay in adults and LC-MS\/MS in children. Most participants reported a vitamin D intake below the average requirement (AR), 16 % of children and 33 % of adults met the AR (7\u22c55 \u03bcg). In adults, plasma 25(OH)D below 30 and 50 nmol\/l were found in 1 and 18 % of participants during the summer period and in 9 and 40 % of participants during the winter period, respectively. In children, serum 25(OH)D below 30 and 50 nmol\/l were found in 5 and 42 % of participants (samples collected March\u2013May), respectively. Higher 25(OH)D concentrations were associated with the summer season, vacations in sunny locations (adults), and dietary intake of vitamin D and use of vitamin D supplements, while lower concentrations were associated with a higher BMI and an origin outside of Europe. Concentrations of 25(OH)D were lower using the immunoassay than with the LC-MS assay, but associations with dietary factors and seasonal variability were similar. In conclusion, vitamin D intake was lower than the AR, especially in children. The 25(OH)D concentrations were low in many participants, but few participants had a concentration below 30 nmol\/l.\n                  <\/jats:p>","DOI":"10.1017\/jns.2020.40","type":"journal-article","created":{"date-parts":[[2020,10,12]],"date-time":"2020-10-12T04:53:19Z","timestamp":1602478399000},"source":"Crossref","is-referenced-by-count":31,"title":["Vitamin D status in children and adults in Sweden: dietary intake and 25-hydroxyvitamin D concentrations in children aged 10\u201312 years and adults aged 18\u201380 years"],"prefix":"10.1017","volume":"9","author":[{"given":"Cecilia","family":"N\u00e4ls\u00e9n","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wulf","family":"Becker","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Monika","family":"Pearson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter","family":"Ridefelt","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4748-4300","authenticated-orcid":false,"given":"Anna Karin","family":"Lindroos","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Natalia","family":"Kotova","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Irene","family":"Mattisson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2020,10,12]]},"reference":[{"key":"S2048679020000403_ref52","doi-asserted-by":"publisher","DOI":"10.1017\/S0007114517000538"},{"key":"S2048679020000403_ref51","doi-asserted-by":"publisher","DOI":"10.3945\/ajcn.110.006577"},{"key":"S2048679020000403_ref53","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinbiochem.2015.08.005"},{"key":"S2048679020000403_ref50","doi-asserted-by":"publisher","DOI":"10.1093\/ajcn\/71.5.1161"},{"key":"S2048679020000403_ref49","doi-asserted-by":"publisher","DOI":"10.1007\/s00125-006-0426-x"},{"key":"S2048679020000403_ref47","doi-asserted-by":"publisher","DOI":"10.1016\/S8756-3282(02)00692-0"},{"key":"S2048679020000403_ref21","first-page":"32","article-title":"Vitamin D status as an international issue: national surveys and the problem of standardization","volume":"243","author":"Sempos","year":"2012","journal-title":"Scand J Clin Lab Invest Suppl"},{"key":"S2048679020000403_ref20","doi-asserted-by":"publisher","DOI":"10.1016\/j.jsbmb.2016.12.002"},{"key":"S2048679020000403_ref17","doi-asserted-by":"publisher","DOI":"10.1016\/j.cca.2014.03.022"},{"key":"S2048679020000403_ref16","doi-asserted-by":"publisher","DOI":"10.1002\/mas.21408"},{"key":"S2048679020000403_ref12","volume-title":"Riksmaten-Adults 2010\u201311. Food and Nutrient Intake among Adults in Sweden","year":"2012"},{"key":"S2048679020000403_ref48","doi-asserted-by":"publisher","DOI":"10.1017\/S0007114512003212"},{"key":"S2048679020000403_ref24","doi-asserted-by":"publisher","DOI":"10.1017\/jns.2015.1"},{"key":"S2048679020000403_ref37","doi-asserted-by":"publisher","DOI":"10.1111\/joim.12563"},{"key":"S2048679020000403_ref13","volume-title":"Riksmaten-Children 2003. Food and Nutrient Intake among Children in Sweden","author":"Enghardt Barbieri","year":"2006"},{"key":"S2048679020000403_ref1","first-page":"1","article-title":"Effectiveness and safety of vitamin D in relation to bone health","volume":"158","author":"Cranney","year":"2007","journal-title":"Evid Rep Technol Assess (Full Rep)"},{"key":"S2048679020000403_ref19","doi-asserted-by":"publisher","DOI":"10.2174\/138945011793591608"},{"key":"S2048679020000403_ref6","volume-title":"Vitamin D and Health Report","year":"2016"},{"key":"S2048679020000403_ref5","volume-title":"Nordic Nutrition Recommendations 2012. Integrating Nutrition and Physical Activity","year":"2014"},{"key":"S2048679020000403_ref11","doi-asserted-by":"publisher","DOI":"10.1562\/2004-11-19-RN-375"},{"key":"S2048679020000403_ref4","volume-title":"Dietary Reference Intakes for Calcium and Vitamin D","year":"2011"},{"key":"S2048679020000403_ref9","doi-asserted-by":"publisher","DOI":"10.3390\/nu2050482"},{"key":"S2048679020000403_ref22","doi-asserted-by":"publisher","DOI":"10.3945\/ajcn.112.057182"},{"key":"S2048679020000403_ref23","doi-asserted-by":"publisher","DOI":"10.5740\/jaoacint.17-0258"},{"key":"S2048679020000403_ref3","first-page":"4547","article-title":"Scientific opinion on dietary reference values for vitamin D","volume":"14","year":"2016","journal-title":"EFSA J"},{"key":"S2048679020000403_ref46","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0138613"},{"key":"S2048679020000403_ref44","doi-asserted-by":"publisher","DOI":"10.1007\/s12020-015-0548-3"},{"key":"S2048679020000403_ref15","doi-asserted-by":"publisher","DOI":"10.1016\/j.steroids.2010.02.012"},{"key":"S2048679020000403_ref2","doi-asserted-by":"publisher","DOI":"10.1007\/s10067-010-1587-z"},{"key":"S2048679020000403_ref10","doi-asserted-by":"publisher","DOI":"10.1093\/ajcn\/61.3.638S"},{"key":"S2048679020000403_ref14","doi-asserted-by":"publisher","DOI":"10.3402\/fnr.v57i0.22671"},{"key":"S2048679020000403_ref8","doi-asserted-by":"publisher","DOI":"10.1359\/jbmr.07s211"},{"key":"S2048679020000403_ref7","doi-asserted-by":"publisher","DOI":"10.1111\/j.1529-8019.2009.01288.x"},{"key":"S2048679020000403_ref30","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0007747"},{"key":"S2048679020000403_ref29","doi-asserted-by":"publisher","DOI":"10.1016\/j.chemosphere.2012.03.049"},{"key":"S2048679020000403_ref25","doi-asserted-by":"publisher","DOI":"10.1017\/jns.2016.29"},{"key":"S2048679020000403_ref26","doi-asserted-by":"publisher","DOI":"10.1038\/sj.ijo.0801376"},{"key":"S2048679020000403_ref39","doi-asserted-by":"publisher","DOI":"10.3402\/fnr.v60.30045"},{"key":"S2048679020000403_ref28","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0140164"},{"key":"S2048679020000403_ref31","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.320.7244.1240"},{"key":"S2048679020000403_ref18","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0011555"},{"key":"S2048679020000403_ref27","doi-asserted-by":"publisher","DOI":"10.3945\/ajcn.112.039222"},{"key":"S2048679020000403_ref32","doi-asserted-by":"publisher","DOI":"10.1111\/nbu.12108"},{"key":"S2048679020000403_ref33","doi-asserted-by":"publisher","DOI":"10.3945\/jn.111.142257"},{"key":"S2048679020000403_ref45","doi-asserted-by":"publisher","DOI":"10.1016\/j.jphotobiol.2014.07.018"},{"key":"S2048679020000403_ref34","doi-asserted-by":"publisher","DOI":"10.1016\/j.jsbmb.2010.03.079"},{"key":"S2048679020000403_ref36","doi-asserted-by":"publisher","DOI":"10.3402\/ijch.v74.27963"},{"key":"S2048679020000403_ref40","doi-asserted-by":"publisher","DOI":"10.3945\/ajcn.115.120873"},{"key":"S2048679020000403_ref38","doi-asserted-by":"publisher","DOI":"10.1093\/ajcn\/86.5.1399"},{"key":"S2048679020000403_ref41","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2296-14-129"},{"key":"S2048679020000403_ref35","doi-asserted-by":"publisher","DOI":"10.1038\/ejcn.2013.3"},{"key":"S2048679020000403_ref42","doi-asserted-by":"publisher","DOI":"10.3109\/07853890.2015.1020860"},{"key":"S2048679020000403_ref43","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0060864"}],"container-title":["Journal of Nutritional Science"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S2048679020000403","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,10,12]],"date-time":"2020-10-12T04:53:22Z","timestamp":1602478402000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S2048679020000403\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020]]},"references-count":53,"alternative-id":["S2048679020000403"],"URL":"https:\/\/doi.org\/10.1017\/jns.2020.40","relation":{},"ISSN":["2048-6790"],"issn-type":[{"value":"2048-6790","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020]]},"article-number":"e47"}}