ReviewNutrients2021
Vitamin D Dosing: Basic Principles and a Brief Algorithm (2021 Update).
Review in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 4 of them syntheses 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
37 citing papers in PubMed, 4 syntheses or guidelines pooled it.
- The efficacy of vitamin D supplementation in the management of childhood asthma: a systematic review and meta-analysis.Frontiers in nutrition · 2026Pooled it
- Vitamin D supplementation decrease asthma exacerbations in children: a systematic review and meta-analysis of randomized controlled trials.Annals of medicine · 2024Pooled it
- Effectiveness of Vitamin D Supplements in Reducing the Risk of Falls among Older Adults: A Meta-Analysis of Randomized Controlled Trials.Annals of geriatric medicine and research · 2023Pooled it
- Pooled it
- Vitamin D3 supplementation enhances the effect of aerobic water-based training on physical fitness indices in obese and overweight menopausal women: A randomized controlled trial.Women's health (London, England)Trial
- Circulating serum 25-hydroxyvitamin D levels and bone mineral density and osteoporotic vertebral fractures: A Mendelian randomization study.Journal of translational internal medicine · 2026Article
- Vitamin D status and its association with diabetic complications in type 2 diabetes mellitus: A case-control study.Nutrition and health · 2026Article
- Vitamin D deficiency and disease conditions relevant to: Orthopaedic translation.Journal of orthopaedic translation · 2026Review
- [Optimal serum 25(OH)D levels in relation to musculoskeletal, metabolic, neurological, autoimmune and infectious diseases].Problemy endokrinologii · 2026Review
- Case Report: Unusual electrolyte changes in primary hyperparathyroidism-a call to suspect underlying Gitelman syndrome.Frontiers in endocrinology · 2026Article
- Rethinking Vitamin D Deficiency: Controversies and Practical Guidance for Clinical Management.Nutrients · 2025Review
- Vitamin D-is the sun enough for us?Nutrition & metabolism · 2025Review
- Correlation between vitamin D level and left ventricular myocardial function demonstrated by speckle tracking echocardiography among β-thalassemia major children.European journal of pediatrics · 2025Article
- Vitamin D Serum Levels and the Development of Intensive Care Unit-Acquired Weakness: Insights from a COVID-19 Intensive Care Cohort.Pathophysiology : the official journal of the International Society for Pathophysiology · 2025Article
- Exploration of vitamin D hydroxy metabolites C3 epimers in patients with cardiovascular disease: an observational study.Bioscience reports · 2025Observational
- Consensus Statement on Vitamin D Status Assessment and Supplementation: Whys, Whens, and Hows.Endocrine reviews · 2024Article
- Tremendous Fidelity of Vitamin D3 in Age-related Neurological Disorders.Molecular neurobiology · 2024Review
- Article
- The Relationship between Frontal QRS-T Angle and Vitamin D Deficiency.Medicina (Kaunas, Lithuania) · 2024Article
- Course of Vitamin D Levels in Newly Diagnosed Non-Metastatic Breast Cancer Patients over One Year with Quarterly Controls and Substitution.Nutrients · 2024Observational
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
1 author.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Nowadays, in modern societies, many people can be at high risk to have low vitamin D levels. Therefore, testing of serum 25-hydroxy-vitamin D (25OH-D) levels should be performed before prescribing them vitamin D supplementation. However, in some cases the 25OH-D level assessment is not available at the right moment, e.g., due to mandatory quarantine of COVID-19 outpatients. Therefore, such patients could be advised to start taking moderate vitamin D doses (e.g., 4000 IU/day for adults), and their 25-OH-D levels could be checked later. The proposed algorithm also comprises vitamin D dosing principles when baseline 25OH-D levels are known.
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What OpenQuestion 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 OpenQuestion graph.