High-dose vs standard-dose vitamin D and sleep in early childhood: A randomized clinical trial
We observed that high-dose versus standard-dose vitamin D<sub>3</sub> provides no benefits for child's sleep, even if we found an association between child's higher 25(OH)D and less sleep disturbances. Higher maternal 25(OH)D during pregnancy was associated with child's better sleep, which should be studied further.
Authors
- Maria Enlund-Cerullo (ORCID: https://orcid.org/0000-0001-9057-1840)
- Samuel Sandboge (ORCID: https://orcid.org/0000-0003-1354-4026)
- Jenni Rosendahl (ORCID: https://orcid.org/0000-0002-5419-8003)
- Saara Valkama (ORCID: https://orcid.org/0000-0002-1096-7704)
- Vilja Seppälä (ORCID: https://orcid.org/0000-0001-6981-8685)
- Kati Heinonen
- Elisa Holmlund-Suila
- Helena Hauta-alus
- Katri Räikkönen
- Eero Kajantie
- Sture Andersson
- Outi Mäkitie
Institutions
- Karolinska University Hospital (SE)
- University of Helsinki (FI)
- Oulu University Hospital (FI)
- Helsinki University Hospital (FI)
- Helsinki Children's Hospital (FI)
- Tampere University (FI)
- Institute for Molecular Medicine Finland (FI)
- University of Oulu (FI)
Publication Details
- Journal
- Sleep Medicine
- Published
- 2026-03-23
- DOI
- https://doi.org/10.1016/j.sleep.2026.108913
- Primary Topic
- Vitamin D Research Studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00