{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T08:29:54Z","timestamp":1788251394716,"version":"build-2803163510"},"reference-count":0,"publisher":"Cambridge University Press (CUP)","issue":"12","license":[{"start":{"date-parts":[[2025,6,30]],"date-time":"2025-06-30T00:00:00Z","timestamp":1751241600000},"content-version":"unspecified","delay-in-days":2,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["cambridge.org"],"crossmark-restriction":true},"short-container-title":["Br J Nutr"],"published-print":{"date-parts":[[2025,6,28]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The RDA for dietary protein is likely insufficient for individuals with cystic fibrosis (CF). This study sought to characterise protein intake and diet quality in adults with cystic fibrosis (awCF), before and after elexacaftor\/tezacaftor\/ivacaftor (ETI) therapy, compared with healthy controls. Dietary intake was assessed by diet diary in awCF at baseline (BL, <jats:italic>n<\/jats:italic> 40) and at follow-up &gt; 3 months post ETI therapy (follow-up (FUP), <jats:italic>n<\/jats:italic> 40) and in age-matched healthy controls (CON, <jats:italic>n<\/jats:italic> 80) free from known disease at a single time point. Protein intake dose and daily distribution, protein quality, protein source and overall diet quality were calculated for each participant. Both CON (1\u00b739 (<jats:sc>sd<\/jats:sc> 0\u00b747) g\u00b7kg<jats:sup>\u20131<\/jats:sup>\u00b7day<jats:sup>\u20131<\/jats:sup>) and CF (BL: 1\u00b744 (<jats:sc>sd<\/jats:sc> 0\u00b752) g\u00b7kg<jats:sup>\u20131<\/jats:sup>\u00b7day<jats:sup>\u20131<\/jats:sup>, FUP: 1\u00b712 (<jats:sc>sd<\/jats:sc> 0\u00b732) g\u00b7kg<jats:sup>\u20131<\/jats:sup>\u00b7day<jats:sup>\u20131<\/jats:sup>) had a higher mean daily protein intake than the protein RDA of 0\u00b775g\u00b7kg<jats:sup>\u20131<\/jats:sup>\u00b7day<jats:sup>\u20131<\/jats:sup>. There was a significant reduction in daily protein intake in the CF group at FUP (<jats:italic>P<\/jats:italic> = 0\u00b70003, <jats:italic>d<\/jats:italic> = 0\u00b773), with levels below the alternative suggested dietary intake of \u2265 1\u00b72 g\u00b7kg<jats:sup>\u20131<\/jats:sup>\u00b7day<jats:sup>\u20131<\/jats:sup>. There were no sex differences or noticeable effects on protein quality or source following the commencement of ETI therapy when compared with CON (all <jats:italic>P<\/jats:italic> &gt; 0\u00b705), although overall diet quality decreased between time points (<jats:italic>P =<\/jats:italic> 0\u00b7027, <jats:italic>d<\/jats:italic> = 0\u00b757). The observed reduction in daily protein intake in the present cohort emphasises the importance of ensuring appropriate dietary protein intake to promote healthy ageing in adults with CF. More research is needed to evidence base dietary protein requirements in this at-risk population.<\/jats:p>","DOI":"10.1017\/s0007114525103760","type":"journal-article","created":{"date-parts":[[2025,6,30]],"date-time":"2025-06-30T02:00:36Z","timestamp":1751248836000},"page":"1497-1505","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":4,"title":["Dietary protein intake and overall diet quality in adults with cystic fibrosis following elexacaftor\/tezacaftor\/ivacaftor therapy"],"prefix":"10.1017","volume":"133","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7254-4507","authenticated-orcid":false,"given":"Paul T.","family":"Morgan","sequence":"first","affiliation":[{"name":"Manchester Metropolitan University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tanith-Jade","family":"Ellis","sequence":"additional","affiliation":[{"name":"Manchester Metropolitan University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0327-5726","authenticated-orcid":false,"given":"Benoit","family":"Smeuninx","sequence":"additional","affiliation":[{"name":"Monash University"},{"name":"University of Birmingham"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6669-4816","authenticated-orcid":false,"given":"Leigh","family":"Breen","sequence":"additional","affiliation":[{"name":"University of Birmingham"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laura","family":"Kinsey","sequence":"additional","affiliation":[{"name":"Manchester University Hospitals NHS Foundation Trust"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Owen W.","family":"Tomlinson","sequence":"additional","affiliation":[{"name":"University of Exeter Medical School"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Helen","family":"White","sequence":"additional","affiliation":[{"name":"Leeds Beckett University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8957-1018","authenticated-orcid":false,"given":"Laura R.","family":"Caley","sequence":"additional","affiliation":[{"name":"University of Leeds"},{"name":"Leeds Teaching Hospitals NHS Trust"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel G.","family":"Peckham","sequence":"additional","affiliation":[{"name":"University of Leeds"},{"name":"Leeds Teaching Hospitals NHS Trust"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2025,6,30]]},"container-title":["British Journal of Nutrition"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0007114525103760","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,9,9]],"date-time":"2025-09-09T13:09:20Z","timestamp":1757423360000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0007114525103760\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,6,28]]},"references-count":0,"journal-issue":{"issue":"12","published-print":{"date-parts":[[2025,6,28]]}},"alternative-id":["S0007114525103760"],"URL":"https:\/\/doi.org\/10.1017\/s0007114525103760","relation":{},"ISSN":["0007-1145","1475-2662"],"issn-type":[{"value":"0007-1145","type":"print"},{"value":"1475-2662","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,6,28]]},"assertion":[{"value":"\u00a9 The Author(s), 2025. Published by Cambridge University Press on behalf of the Nutrition Society","name":"copyright","label":"Copyright","group":{"name":"copyright_and_licensing","label":"Copyright and Licensing"}},{"value":"This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https:\/\/creativecommons.org\/licenses\/by\/4.0\/), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.","name":"license","label":"License","group":{"name":"copyright_and_licensing","label":"Copyright and Licensing"}},{"value":"This content has been made available to all.","name":"free","label":"Free to read"}]}}