The effects of Nordic school meals on concentration and school performance in 8- to 11-year-old children in the OPUS School Meal Study: a cluster-randomised, controlled, cross-over trial
It is widely assumed that nutrition can improve school performance in children; however, evidence remains limited and inconclusive. In the present study, we investigated whether serving healthy school meals influenced concentration and school performance of 8- to 11-year-old Danish children. The OPU...
Gespeichert in:
| Veröffentlicht in: | British journal of nutrition 2015-04, Vol.113 (8), p.1280-1291 |
|---|---|
| Hauptverfasser: | , , , , , , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 1291 |
|---|---|
| container_issue | 8 |
| container_start_page | 1280 |
| container_title | British journal of nutrition |
| container_volume | 113 |
| creator | Sørensen, Louise B. Dyssegaard, Camilla B. Damsgaard, Camilla T. Petersen, Rikke A. Dalskov, Stine-Mathilde Hjorth, Mads F. Andersen, Rikke Tetens, Inge Ritz, Christian Astrup, Arne Lauritzen, Lotte Michaelsen, Kim F. Egelund, Niels |
| description | It is widely assumed that nutrition can improve school performance in children; however, evidence remains limited and inconclusive. In the present study, we investigated whether serving healthy school meals influenced concentration and school performance of 8- to 11-year-old Danish children. The OPUS (Optimal well-being, development and health for Danish children through a healthy New Nordic Diet) School Meal Study was a cluster-randomised, controlled, cross-over trial comparing a healthy school meal programme with the usual packed lunch from home (control) each for 3 months (NCT 01457794). The d2 test of attention, the Learning Rating Scale (LRS) and standard tests on reading and mathematics proficiency were administered at baseline and at the end of each study period. Intervention effects were evaluated using hierarchical mixed models. The school meal intervention did not influence concentration performance (CP; primary outcome, n 693) or processing speed; however, the decrease in error percentage was 0·18 points smaller (P |
| doi_str_mv | 10.1017/S0007114515000033 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1677379820</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><cupid>10_1017_S0007114515000033</cupid><sourcerecordid>3667837051</sourcerecordid><originalsourceid>FETCH-LOGICAL-c416t-47824bb27e487601a74d14b9ae5fd694a37449d3dcb361aa6d3004d7597b6bfd3</originalsourceid><addsrcrecordid>eNp1kc9u1DAQxi1ERZfCA3BBlrhwwMWTOHbCDVXlj1Qo0rbnyLEnbConXmyn0r4aT4ezu0UIxMkz8_3mm7GGkBfAz4GDervmnCsAUUGVI16Wj8gKhKpYIWXxmKwWmS36KXka411Oa-DNE3JaVKoBJdSK_LzZIMW-R5Mi9T396oMdDI1m472jI2qXyxM1fjI4paDTkDM92Qdii6H3YdRZpsNEa0aTpwBshzow7yw1m8HZgNOipjzr-tvtmq4PzV-yPV2n2e7eUU2Nm2PCwEK29-MQ0b5Z5qbgndvHwcfI_D0GmsKg3TNy0uf18PnxPSO3Hy5vLj6xq-uPny_eXzEjQCYmVF2IrisUilpJDloJC6JrNFa9lY3QpRKisaU1XSlBa2lLzoVVVaM62fW2PCOvD77b4H_MGFOblzPonJ7Qz7EFqVSpmrrgGX31F3rn5zDl7RZKQlOpPQUHav-jgH27DcOow64F3i6Hbf85bO55eXSeuxHt746HS2agPJrqsQuD_Y5_zP6v7S_2E61R</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1676195720</pqid></control><display><type>article</type><title>The effects of Nordic school meals on concentration and school performance in 8- to 11-year-old children in the OPUS School Meal Study: a cluster-randomised, controlled, cross-over trial</title><source>MEDLINE</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>Cambridge Journals</source><source>Free Full-Text Journals in Chemistry</source><creator>Sørensen, Louise B. ; Dyssegaard, Camilla B. ; Damsgaard, Camilla T. ; Petersen, Rikke A. ; Dalskov, Stine-Mathilde ; Hjorth, Mads F. ; Andersen, Rikke ; Tetens, Inge ; Ritz, Christian ; Astrup, Arne ; Lauritzen, Lotte ; Michaelsen, Kim F. ; Egelund, Niels</creator><creatorcontrib>Sørensen, Louise B. ; Dyssegaard, Camilla B. ; Damsgaard, Camilla T. ; Petersen, Rikke A. ; Dalskov, Stine-Mathilde ; Hjorth, Mads F. ; Andersen, Rikke ; Tetens, Inge ; Ritz, Christian ; Astrup, Arne ; Lauritzen, Lotte ; Michaelsen, Kim F. ; Egelund, Niels</creatorcontrib><description>It is widely assumed that nutrition can improve school performance in children; however, evidence remains limited and inconclusive. In the present study, we investigated whether serving healthy school meals influenced concentration and school performance of 8- to 11-year-old Danish children. The OPUS (Optimal well-being, development and health for Danish children through a healthy New Nordic Diet) School Meal Study was a cluster-randomised, controlled, cross-over trial comparing a healthy school meal programme with the usual packed lunch from home (control) each for 3 months (NCT 01457794). The d2 test of attention, the Learning Rating Scale (LRS) and standard tests on reading and mathematics proficiency were administered at baseline and at the end of each study period. Intervention effects were evaluated using hierarchical mixed models. The school meal intervention did not influence concentration performance (CP; primary outcome, n 693) or processing speed; however, the decrease in error percentage was 0·18 points smaller (P< 0·001) in the intervention period than in the control period (medians: baseline 2·03 %; intervention 1·46 %; control 1·37 %). In contrast, the intervention increased reading speed (0·7 sentence, P= 0·009) and the number of correct sentences (1·8 sentences, P< 0·001), which corresponded to 11 and 25 %, respectively, of the effect of one school year. The percentage of correct sentences also improved (P< 0·001), indicating that the number correct improved relatively more than reading speed. There was no effect on overall math performance or outcomes from the LRS. In conclusion, school meals did not affect CP, but improved reading performance, which is a complex cognitive activity that involves inference, and increased errors related to impulsivity and inattention. These findings are worth examining in future trials.</description><identifier>ISSN: 0007-1145</identifier><identifier>EISSN: 1475-2662</identifier><identifier>DOI: 10.1017/S0007114515000033</identifier><identifier>PMID: 25791747</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>Academic achievement ; Achievement ; Anthropometry ; Attention ; Child ; Cluster Analysis ; Cross-Over Studies ; Denmark ; Diet ; Elementary school students ; Female ; Food Services ; Human and Clinical Nutrition ; Humans ; Intervention ; Learning ; Male ; Mathematics ; Meals ; Models, Statistical ; Nutrition ; Nutritional Sciences ; Reading ; Reproducibility of Results ; School lunches ; Schools ; Treatment Outcome</subject><ispartof>British journal of nutrition, 2015-04, Vol.113 (8), p.1280-1291</ispartof><rights>Copyright © The Authors 2015</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c416t-47824bb27e487601a74d14b9ae5fd694a37449d3dcb361aa6d3004d7597b6bfd3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.cambridge.org/core/product/identifier/S0007114515000033/type/journal_article$$EHTML$$P50$$Gcambridge$$H</linktohtml><link.rule.ids>164,314,776,780,27903,27904,55606</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25791747$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Sørensen, Louise B.</creatorcontrib><creatorcontrib>Dyssegaard, Camilla B.</creatorcontrib><creatorcontrib>Damsgaard, Camilla T.</creatorcontrib><creatorcontrib>Petersen, Rikke A.</creatorcontrib><creatorcontrib>Dalskov, Stine-Mathilde</creatorcontrib><creatorcontrib>Hjorth, Mads F.</creatorcontrib><creatorcontrib>Andersen, Rikke</creatorcontrib><creatorcontrib>Tetens, Inge</creatorcontrib><creatorcontrib>Ritz, Christian</creatorcontrib><creatorcontrib>Astrup, Arne</creatorcontrib><creatorcontrib>Lauritzen, Lotte</creatorcontrib><creatorcontrib>Michaelsen, Kim F.</creatorcontrib><creatorcontrib>Egelund, Niels</creatorcontrib><title>The effects of Nordic school meals on concentration and school performance in 8- to 11-year-old children in the OPUS School Meal Study: a cluster-randomised, controlled, cross-over trial</title><title>British journal of nutrition</title><addtitle>Br J Nutr</addtitle><description>It is widely assumed that nutrition can improve school performance in children; however, evidence remains limited and inconclusive. In the present study, we investigated whether serving healthy school meals influenced concentration and school performance of 8- to 11-year-old Danish children. The OPUS (Optimal well-being, development and health for Danish children through a healthy New Nordic Diet) School Meal Study was a cluster-randomised, controlled, cross-over trial comparing a healthy school meal programme with the usual packed lunch from home (control) each for 3 months (NCT 01457794). The d2 test of attention, the Learning Rating Scale (LRS) and standard tests on reading and mathematics proficiency were administered at baseline and at the end of each study period. Intervention effects were evaluated using hierarchical mixed models. The school meal intervention did not influence concentration performance (CP; primary outcome, n 693) or processing speed; however, the decrease in error percentage was 0·18 points smaller (P< 0·001) in the intervention period than in the control period (medians: baseline 2·03 %; intervention 1·46 %; control 1·37 %). In contrast, the intervention increased reading speed (0·7 sentence, P= 0·009) and the number of correct sentences (1·8 sentences, P< 0·001), which corresponded to 11 and 25 %, respectively, of the effect of one school year. The percentage of correct sentences also improved (P< 0·001), indicating that the number correct improved relatively more than reading speed. There was no effect on overall math performance or outcomes from the LRS. In conclusion, school meals did not affect CP, but improved reading performance, which is a complex cognitive activity that involves inference, and increased errors related to impulsivity and inattention. These findings are worth examining in future trials.</description><subject>Academic achievement</subject><subject>Achievement</subject><subject>Anthropometry</subject><subject>Attention</subject><subject>Child</subject><subject>Cluster Analysis</subject><subject>Cross-Over Studies</subject><subject>Denmark</subject><subject>Diet</subject><subject>Elementary school students</subject><subject>Female</subject><subject>Food Services</subject><subject>Human and Clinical Nutrition</subject><subject>Humans</subject><subject>Intervention</subject><subject>Learning</subject><subject>Male</subject><subject>Mathematics</subject><subject>Meals</subject><subject>Models, Statistical</subject><subject>Nutrition</subject><subject>Nutritional Sciences</subject><subject>Reading</subject><subject>Reproducibility of Results</subject><subject>School lunches</subject><subject>Schools</subject><subject>Treatment Outcome</subject><issn>0007-1145</issn><issn>1475-2662</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNp1kc9u1DAQxi1ERZfCA3BBlrhwwMWTOHbCDVXlj1Qo0rbnyLEnbConXmyn0r4aT4ezu0UIxMkz8_3mm7GGkBfAz4GDervmnCsAUUGVI16Wj8gKhKpYIWXxmKwWmS36KXka411Oa-DNE3JaVKoBJdSK_LzZIMW-R5Mi9T396oMdDI1m472jI2qXyxM1fjI4paDTkDM92Qdii6H3YdRZpsNEa0aTpwBshzow7yw1m8HZgNOipjzr-tvtmq4PzV-yPV2n2e7eUU2Nm2PCwEK29-MQ0b5Z5qbgndvHwcfI_D0GmsKg3TNy0uf18PnxPSO3Hy5vLj6xq-uPny_eXzEjQCYmVF2IrisUilpJDloJC6JrNFa9lY3QpRKisaU1XSlBa2lLzoVVVaM62fW2PCOvD77b4H_MGFOblzPonJ7Qz7EFqVSpmrrgGX31F3rn5zDl7RZKQlOpPQUHav-jgH27DcOow64F3i6Hbf85bO55eXSeuxHt746HS2agPJrqsQuD_Y5_zP6v7S_2E61R</recordid><startdate>20150428</startdate><enddate>20150428</enddate><creator>Sørensen, Louise B.</creator><creator>Dyssegaard, Camilla B.</creator><creator>Damsgaard, Camilla T.</creator><creator>Petersen, Rikke A.</creator><creator>Dalskov, Stine-Mathilde</creator><creator>Hjorth, Mads F.</creator><creator>Andersen, Rikke</creator><creator>Tetens, Inge</creator><creator>Ritz, Christian</creator><creator>Astrup, Arne</creator><creator>Lauritzen, Lotte</creator><creator>Michaelsen, Kim F.</creator><creator>Egelund, Niels</creator><general>Cambridge University Press</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QP</scope><scope>7RV</scope><scope>7T5</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8C1</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AN0</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB0</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M2O</scope><scope>MBDVC</scope><scope>NAPCQ</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>7X8</scope></search><sort><creationdate>20150428</creationdate><title>The effects of Nordic school meals on concentration and school performance in 8- to 11-year-old children in the OPUS School Meal Study: a cluster-randomised, controlled, cross-over trial</title><author>Sørensen, Louise B. ; Dyssegaard, Camilla B. ; Damsgaard, Camilla T. ; Petersen, Rikke A. ; Dalskov, Stine-Mathilde ; Hjorth, Mads F. ; Andersen, Rikke ; Tetens, Inge ; Ritz, Christian ; Astrup, Arne ; Lauritzen, Lotte ; Michaelsen, Kim F. ; Egelund, Niels</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c416t-47824bb27e487601a74d14b9ae5fd694a37449d3dcb361aa6d3004d7597b6bfd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Academic achievement</topic><topic>Achievement</topic><topic>Anthropometry</topic><topic>Attention</topic><topic>Child</topic><topic>Cluster Analysis</topic><topic>Cross-Over Studies</topic><topic>Denmark</topic><topic>Diet</topic><topic>Elementary school students</topic><topic>Female</topic><topic>Food Services</topic><topic>Human and Clinical Nutrition</topic><topic>Humans</topic><topic>Intervention</topic><topic>Learning</topic><topic>Male</topic><topic>Mathematics</topic><topic>Meals</topic><topic>Models, Statistical</topic><topic>Nutrition</topic><topic>Nutritional Sciences</topic><topic>Reading</topic><topic>Reproducibility of Results</topic><topic>School lunches</topic><topic>Schools</topic><topic>Treatment Outcome</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sørensen, Louise B.</creatorcontrib><creatorcontrib>Dyssegaard, Camilla B.</creatorcontrib><creatorcontrib>Damsgaard, Camilla T.</creatorcontrib><creatorcontrib>Petersen, Rikke A.</creatorcontrib><creatorcontrib>Dalskov, Stine-Mathilde</creatorcontrib><creatorcontrib>Hjorth, Mads F.</creatorcontrib><creatorcontrib>Andersen, Rikke</creatorcontrib><creatorcontrib>Tetens, Inge</creatorcontrib><creatorcontrib>Ritz, Christian</creatorcontrib><creatorcontrib>Astrup, Arne</creatorcontrib><creatorcontrib>Lauritzen, Lotte</creatorcontrib><creatorcontrib>Michaelsen, Kim F.</creatorcontrib><creatorcontrib>Egelund, Niels</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>Nursing & Allied Health Database</collection><collection>Immunology Abstracts</collection><collection>Agricultural Science Collection</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Public Health Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>British Nursing Database</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Database (Alumni Edition)</collection><collection>Agricultural Science Database</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Research Library</collection><collection>Research Library (Corporate)</collection><collection>Nursing & Allied Health Premium</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central Basic</collection><collection>MEDLINE - Academic</collection><jtitle>British journal of nutrition</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sørensen, Louise B.</au><au>Dyssegaard, Camilla B.</au><au>Damsgaard, Camilla T.</au><au>Petersen, Rikke A.</au><au>Dalskov, Stine-Mathilde</au><au>Hjorth, Mads F.</au><au>Andersen, Rikke</au><au>Tetens, Inge</au><au>Ritz, Christian</au><au>Astrup, Arne</au><au>Lauritzen, Lotte</au><au>Michaelsen, Kim F.</au><au>Egelund, Niels</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The effects of Nordic school meals on concentration and school performance in 8- to 11-year-old children in the OPUS School Meal Study: a cluster-randomised, controlled, cross-over trial</atitle><jtitle>British journal of nutrition</jtitle><addtitle>Br J Nutr</addtitle><date>2015-04-28</date><risdate>2015</risdate><volume>113</volume><issue>8</issue><spage>1280</spage><epage>1291</epage><pages>1280-1291</pages><issn>0007-1145</issn><eissn>1475-2662</eissn><abstract>It is widely assumed that nutrition can improve school performance in children; however, evidence remains limited and inconclusive. In the present study, we investigated whether serving healthy school meals influenced concentration and school performance of 8- to 11-year-old Danish children. The OPUS (Optimal well-being, development and health for Danish children through a healthy New Nordic Diet) School Meal Study was a cluster-randomised, controlled, cross-over trial comparing a healthy school meal programme with the usual packed lunch from home (control) each for 3 months (NCT 01457794). The d2 test of attention, the Learning Rating Scale (LRS) and standard tests on reading and mathematics proficiency were administered at baseline and at the end of each study period. Intervention effects were evaluated using hierarchical mixed models. The school meal intervention did not influence concentration performance (CP; primary outcome, n 693) or processing speed; however, the decrease in error percentage was 0·18 points smaller (P< 0·001) in the intervention period than in the control period (medians: baseline 2·03 %; intervention 1·46 %; control 1·37 %). In contrast, the intervention increased reading speed (0·7 sentence, P= 0·009) and the number of correct sentences (1·8 sentences, P< 0·001), which corresponded to 11 and 25 %, respectively, of the effect of one school year. The percentage of correct sentences also improved (P< 0·001), indicating that the number correct improved relatively more than reading speed. There was no effect on overall math performance or outcomes from the LRS. In conclusion, school meals did not affect CP, but improved reading performance, which is a complex cognitive activity that involves inference, and increased errors related to impulsivity and inattention. These findings are worth examining in future trials.</abstract><cop>Cambridge, UK</cop><pub>Cambridge University Press</pub><pmid>25791747</pmid><doi>10.1017/S0007114515000033</doi><tpages>12</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0007-1145 |
| ispartof | British journal of nutrition, 2015-04, Vol.113 (8), p.1280-1291 |
| issn | 0007-1145 1475-2662 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1677379820 |
| source | MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Cambridge Journals; Free Full-Text Journals in Chemistry |
| subjects | Academic achievement Achievement Anthropometry Attention Child Cluster Analysis Cross-Over Studies Denmark Diet Elementary school students Female Food Services Human and Clinical Nutrition Humans Intervention Learning Male Mathematics Meals Models, Statistical Nutrition Nutritional Sciences Reading Reproducibility of Results School lunches Schools Treatment Outcome |
| title | The effects of Nordic school meals on concentration and school performance in 8- to 11-year-old children in the OPUS School Meal Study: a cluster-randomised, controlled, cross-over trial |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-25T18%3A30%3A57IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=The%20effects%20of%20Nordic%20school%20meals%20on%20concentration%20and%20school%20performance%20in%208-%20to%2011-year-old%20children%20in%20the%20OPUS%20School%20Meal%20Study:%20a%20cluster-randomised,%20controlled,%20cross-over%20trial&rft.jtitle=British%20journal%20of%20nutrition&rft.au=S%C3%B8rensen,%20Louise%20B.&rft.date=2015-04-28&rft.volume=113&rft.issue=8&rft.spage=1280&rft.epage=1291&rft.pages=1280-1291&rft.issn=0007-1145&rft.eissn=1475-2662&rft_id=info:doi/10.1017/S0007114515000033&rft_dat=%3Cproquest_cross%3E3667837051%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1676195720&rft_id=info:pmid/25791747&rft_cupid=10_1017_S0007114515000033&rfr_iscdi=true |