Vitamin D supplementation in the first 2 years and autism spectrum traits at 6–8 years – a randomized clinical trial
We found no indication that higher-than-normal vitamin D<sub>3</sub> supplementation between ages 0 and 2 years decreases ASD-related trait scores at ages 6-8 years. Sex-stratified analysis suggested an inverse association, among boys, between early life 25(OH)D concentrations and ASD-related traits, warranting further studies on potential causal direction and sex specificity of associations.
Authors
- Samuel Sandboge (ORCID: https://orcid.org/0000-0003-1354-4026)
- S. Andersson
- Sakari Lintula (ORCID: https://orcid.org/0000-0002-1265-7734)
- Vilja Seppälä (ORCID: https://orcid.org/0000-0001-6981-8685)
- Eero Kajantie
- Kati Heinonen
- Katri Räikkönen
- Helena Hauta‐alus
- Elisa Holmlund‐Suila
- Outi Mäkitie
Institutions
- Karolinska University Hospital (SE)
- University of Helsinki (FI)
- Tampere University of Applied Sciences (FI)
- Norwegian University of Science and Technology (NO)
- Helsinki University Hospital (FI)
- Karolinska Institutet (SE)
- Finnish Institute for Health and Welfare (FI)
- Tampere University (FI)
- Folkhälsans Forskningscentrum (FI)
- Hospital District of Helsinki and Uusimaa (FI)
- University of Oulu (FI)
Publication Details
- Journal
- Journal of Child Psychology and Psychiatry
- Published
- 2026-01-05
- DOI
- https://doi.org/10.1111/jcpp.70110
- Primary Topic
- Vitamin D Research Studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Suomen Lääketieteen Säätiö
- Juho Vainion Säätiö
- Novo Nordisk
- Signe ja Ane Gyllenbergin Säätiö
- Lastentautien Tutkimussäätiö
- OLVI-Säätiö