Trial reportBMC pediatrics2017
Towards evidence-based vitamin D supplementation in infants: vitamin D intervention in infants (VIDI) - study design and methods of a randomised controlled double-blinded intervention study.
Trial report in BMC pediatrics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01723852 (Vitamin D Intervention in Infants), which is not on this map. Cited by 20 papers, 3 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Vitamin D Intervention in Infants
Who cites it
20 citing papers in PubMed, 3 syntheses or guidelines pooled it, 38 citations in OpenAlex.
- Vitamin D supplementation in pregnant or breastfeeding women or young children for preventing asthma.The Cochrane database of systematic reviews · 2025Pooled it
- Vitamin D supplementation for term breastfed infants to prevent vitamin D deficiency and improve bone health.The Cochrane database of systematic reviews · 2020Pooled it
- Effects of oral vitamin D supplementation on linear growth and other health outcomes among children under five years of age.The Cochrane database of systematic reviews · 2020Pooled it
- Vitamin D supplementation in the first 2 years and autism spectrum traits at 6-8 years - a randomized clinical trial.Journal of child psychology and psychiatry, and allied disciplines · 2026Trial
- Early life vitamin D and neurocognitive abilities at age 6-8 years: a randomized clinical trial and observational analysis.European child & adolescent psychiatry · 2026Trial
- Low-grade inflammation from prenatal period to age 6-8 years in a Vitamin D trial.Pediatric research · 2024Trial
- Effect of Vitamin D3 Supplementation in the First 2 Years of Life on Psychiatric Symptoms at Ages 6 to 8 Years: A Randomized Clinical Trial.JAMA network open · 2023Trial
- Phosphate Concentrations and Modifying Factors in Healthy Children From 12 to 24 Months of Age.The Journal of clinical endocrinology and metabolism · 2021Trial
- Effect of High-Dose vs Standard-Dose Vitamin D Supplementation on Neurodevelopment of Healthy Term Infants: A Randomized Clinical Trial.JAMA network open · 2021Trial
- Effect of Higher vs Standard Dosage of Vitamin D3 Supplementation on Bone Strength and Infection in Healthy Infants: A Randomized Clinical Trial.JAMA pediatrics · 2018Trial
- Bone turnover markers, and growth and bone parameters in infants participating in a vitamin D intervention study.Endocrine connections · 2025Article
- Impact of vitamin D on hyperoxic acute lung injury in neonatal mice.BMC pulmonary medicine · 2024Article
- Prenatal maternal and cord blood vitamin D concentrations and negative affectivity in infancy.European child & adolescent psychiatry · 2023Article
- Variation in the fibroblast growth factor 23 (Frontiers in genetics · 2023Article
- Collagen X Biomarker (CXM), Linear Growth, and Bone Development in a Vitamin D Intervention Study in Infants.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2022Article
- The Association of Vitamin D and Neurodevelopmental Status Among 2 Years Old Infants.Global pediatric health · 2021Article
- Vitamin D-Resistant Rickets Diagnostics and Treatment Challenges at Muhimbili National Hospital, Tanzania.Case reports in endocrinology · 2020Article
- Genetic variation in GC and CYP2R1 affects 25-hydroxyvitamin D concentration and skeletal parameters: A genome-wide association study in 24-month-old Finnish children.PLoS genetics · 2019Article
- Food and Nutrient Intake and Nutrient Sources in 1-Year-Old Infants in Finland: A Cross-Sectional Analysis.Nutrients · 2017Article
- Better understanding of childhood asthma, towards primary prevention - are we there yet? Consideration of pertinent literature.F1000Research · 2017Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundVitamin D is important for bone mass accrual during growth. Additionally, it is considered a requirement for a multitude of processes associated with, for example, the development of immunity. Many countries apply vitamin D supplementation strategies in infants, but the guidelines are not based on scientific evidence and aim at prevention of rickets. It remains unclear whether the recommended doses are sufficient for the wide array of other effects of vitamin D. The VIDI trial performed in Finland is the first large randomised controlled study for evaluation of the effects of different vitamin D supplemental doses in infancy on: 1. bone strength 2. infections and immunity 3. allergy, atopy and asthma 4. cognitive development 5. genetic regulation of mineral homeostasis METHODS/
designVIDI, a randomised controlled double-blinded single-centre intervention study is conducted in infants from the age of 2 weeks to 24 months. Participants, recruited at Helsinki Maternity Hospital, are randomised to receive daily either 10 μg (400 IU) or 30 μg (1 200 IU) of vitamin D3 supplementation. Both groups are assessed at 6 months of age for calcium homeostasis, and at 12 and 24 months of age for parameters associated with bone strength, growth, developmental milestones, infections, immunity, atopy-related diseases, and genetic factors involved in these functions. DISCUSSION: The study enables evaluation of short and long term effects of supplemental vitamin D on growth, immune functions and skeletal and developmental parameters in infants, and the effects of genetic factors therein. The results enable institution of evidence-based guidelines for vitamin D supplementation in infancy.
trial registrationClinicalTrials.gov, NCT01723852 , registration date 6.11.2012.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.