{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T00:55:05Z","timestamp":1760230505669,"version":"build-2065373602"},"reference-count":34,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2022,7,28]],"date-time":"2022-07-28T00:00:00Z","timestamp":1658966400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Austrian national grant \u201cNationalbank Jubil\u00e4umsfondsprojekt 15378\u201d"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nutrients"],"abstract":"<jats:p>Preterm birth places infants at high risk for mineral and micronutrient deficiencies important for bone health. The aim of this study was to examine whether two timepoints for the introduction of solid foods in preterm infants have an impact on vitamin D status in the first year of life. This is a secondary outcome analysis of a prospective, randomized trial on very low birth weight (VLBW) infants, randomized to an early (10\u201312th week corrected age) or a late (16\u201318th week corrected age) complementary-feeding group. Vitamin D status was assessed by blood samples taken at 6 weeks, 6, and 12 months corrected age. In total, 177 infants were randomized (early group: n = 89, late group: n = 88). There was a tendency toward lower levels of serum 25-OH-vitamin D in the early group throughout the first year of life (p = not significant (n.s.)); no differences were detected in the other parameters. At 6 months corrected age, infants of the early group had a significantly higher incidence of vitamin D deficiency. The timepoint of the introduction of solid foods had no impact on the serum 25-OH-vitamin D levels and other parameters important for bone health but showed a tendency toward lower levels in the early-feeding group.<\/jats:p>","DOI":"10.3390\/nu14153105","type":"journal-article","created":{"date-parts":[[2022,7,28]],"date-time":"2022-07-28T22:43:26Z","timestamp":1659048206000},"page":"3105","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Preterm Infants on Early Solid Foods and Vitamin D Status in the First Year of Life\u2014A Secondary Outcome Analysis of a Randomized Controlled Trial"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4422-8029","authenticated-orcid":false,"given":"Margarita","family":"Thanhaeuser","sequence":"first","affiliation":[{"name":"Department of Pediatrics and Adolescent Medicine, Comprehensive Center for Pediatrics, Medical University of Vienna, 1090 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5012-3082","authenticated-orcid":false,"given":"Fabian","family":"Eibensteiner","sequence":"additional","affiliation":[{"name":"Department of Pediatrics and Adolescent Medicine, Comprehensive Center for Pediatrics, Medical University of Vienna, 1090 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Margit","family":"Kornsteiner-Krenn","sequence":"additional","affiliation":[{"name":"Department of Pediatrics and Adolescent Medicine, Comprehensive Center for Pediatrics, Medical University of Vienna, 1090 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5832-7810","authenticated-orcid":false,"given":"Melanie","family":"Gsoellpointner","sequence":"additional","affiliation":[{"name":"Department of Clinical Pharmacology, Medical University of Vienna, 1090 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sophia","family":"Brandstetter","sequence":"additional","affiliation":[{"name":"Department of Pediatrics and Adolescent Medicine, Comprehensive Center for Pediatrics, Medical University of Vienna, 1090 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ursula","family":"Koeller","sequence":"additional","affiliation":[{"name":"Department of Laboratory Medicine, Klinik Hietzing, Wiener Gesundheitsverbund, 1130 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wolfgang","family":"Huf","sequence":"additional","affiliation":[{"name":"Department of Laboratory Medicine, Klinik Hietzing, Wiener Gesundheitsverbund, 1130 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mercedes","family":"Huber-Dangl","sequence":"additional","affiliation":[{"name":"Department of Pediatrics and Adolescent Medicine, Comprehensive Center for Pediatrics, Medical University of Vienna, 1090 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7939-246X","authenticated-orcid":false,"given":"Christoph","family":"Binder","sequence":"additional","affiliation":[{"name":"Department of Pediatrics and Adolescent Medicine, Comprehensive Center for Pediatrics, Medical University of Vienna, 1090 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1051-1141","authenticated-orcid":false,"given":"Alexandra","family":"Thajer","sequence":"additional","affiliation":[{"name":"Department of Pediatrics and Adolescent Medicine, Comprehensive Center for Pediatrics, Medical University of Vienna, 1090 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bernd","family":"Jilma","sequence":"additional","affiliation":[{"name":"Department of Clinical Pharmacology, Medical University of Vienna, 1090 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Angelika","family":"Berger","sequence":"additional","affiliation":[{"name":"Department of Pediatrics and Adolescent Medicine, Comprehensive Center for Pediatrics, Medical University of Vienna, 1090 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4806-0312","authenticated-orcid":false,"given":"Nadja","family":"Haiden","sequence":"additional","affiliation":[{"name":"Department of Clinical Pharmacology, Medical University of Vienna, 1090 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,7,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"533","DOI":"10.1080\/03014469400003542","article-title":"Body composition of the preterm infant","volume":"21","author":"Ellis","year":"1994","journal-title":"Ann. 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