ArticleJBMR plus2021
Trends in Vitamin D Status Around the World.
Article in JBMR plus, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
60 citing papers in PubMed, 1 synthesis or guideline pooled it, 80 citations in OpenAlex.
- Pooled it
- Impact of vitamin D supplementation in the prognosis of patients with SARS-CoV2 pneumonia admitted to the intensive care unit - a randomized controlled trial.Frontiers in immunology · 2025Trial
- Randomized trial of influence of vitamin D on the prevention and improvement of symptomatic COVID-19.Scientific reports · 2024Trial
- Effect of Vitamin D Supplementation on (25(OH)D) Status in Children 12-30 Months of Age: A Randomized Clinical Trial.Nutrients · 2023Trial
- Vitamin D in Photosynthetic Organisms and Fungi: Sterol Photochemistry, UV-B Availability, and Biofortification Potential.Current issues in molecular biology · 2026Review
- Prevalence and determinants of secondary hyperparathyroidism: IMOS-2021.Scientific reports · 2026Article
- Impact of trimester-specific nutrition counseling on maternal vitamin D status, and perinatal outcomes in India: a quasi-experimental cohort study.BMC public health · 2026Article
- Weight loss lifestyle intervention and bone health hormonal markers in type 2 diabetes: analysis from look AHEAD study.Journal of the Endocrine Society · 2026Article
- Vitamin D Status and Health Indicators in the Malagasy Population: A Pilot Study.Healthcare (Basel, Switzerland) · 2026Article
- Harnessing natural sunlight indoors: sensor-regulated therapeutic approach to enhance vitamin D status in humans.Scientific reports · 2026Article
- Vitamin D Serum Status and Associated Factors Among Women with Cervical Lesions.Epidemiologia (Basel, Switzerland) · 2026Article
- Analysis of chemiluminescence and liquid chromatography-mass spectrometry in 25-hydroxyvitamin D detection using fuzzy logic.Scientific reports · 2026Article
- How deficient are we? A retrospective analysis of vitamin D status in 85,892 Turkish adults.BMC public health · 2026Observational
- [Optimal serum 25(OH)D levels in relation to musculoskeletal, metabolic, neurological, autoimmune and infectious diseases].Problemy endokrinologii · 2026Review
- Pregnancy Vitamin D Deficiency Prevalence and Adverse Birth Outcomes in Mazandaran, a Province of Iran: A Cross-Sectional Study.Journal of pregnancy · 2026Article
- Investigating the association between urban rural classification with fragility fractures and bone density in the UK: evidence from a large observational clinical cohort.Rheumatology advances in practice · 2026Article
- Assessing Mitochondrial Function, Oxidative Stress and Vitamin D Status in Dark-Skinned Patients With Keloid Disease.Dermatology research and practice · 2026Article
- Article
- Nutrition and Uterine Fibroids: Clinical Impact and Emerging Therapeutic Perspectives.Journal of clinical medicine · 2025Review
- High adiposity linked to presarcopenia and decreased cardiorespiratory fitness in sedentary young Indians independent of their high-fat-salt-sugar (HFSS) food frequency.Scientific reports · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Vitamin D status varies across all continents and countries. Vitamin D status usually is adequate in Latin America and Australia, but in contrast it is very low in the Middle East and some countries in Asia. Trends in vitamin D status, whether it improves or declines over the years, carry important messages. Trends usually are small, but can be predictors and indicators of general health. Vitamin D status has improved in the older population in the United States, and improvement relates to dairy use and vitamin D supplements. To the contrary, vitamin D status has declined in the Inuit population of Canada due to a change from a traditional fish diet to a Western diet. A large improvement was seen in Finland after mandatory fortification of dairy products was introduced. Determinants of decline are less sun exposure, increased use of sunscreen, increase of body mass index (BMI), less physical activity, and poor socioeconomic status. Determinants of increase are food fortification with vitamin D and vitamin D supplements. Food fortification can lead to a population-wide increase in vitamin D status as shown by the Finnish example. © 2021 The Authors.
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What Socratic holds
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 Socratic graph.