Vitamin D Status and Health Implications
Summary
Vitamin D, synthesised in the skin through ultraviolet B exposure and obtained in smaller quantities from dietary sources, is metabolised to 25-hydroxyvitamin D [25(OH)D], the principal circulating form and clinical marker of status. Adequate levels of 25(OH)D are essential for calcium homeostasis and musculoskeletal integrity, while growing evidence links suboptimal status to immune dysregulation, adverse pregnancy outcomes, cardiometabolic disorders and increased susceptibility to respiratory infections. Global surveys reveal persistent insufficiency and deficiency across diverse populations, driven by factors such as latitude, skin pigmentation, cultural practices, body mass index and limited food fortification. Public health interventions range from supplementation guidelines to systematic food fortification, yet optimal thresholds for skeletal and extraskeletal health remain debated. The relationship between 25(OH)D concentration and clinical endpoints exhibits both linear and non-linear characteristics, underscoring the need for tailored strategies informed by robust epidemiological and mechanistic research. A comprehensive understanding of vitamin D metabolism, population status and intervention efficacy is vital to inform policy and clinical practice worldwide.
Research from Nature Portfolio
No recent Nature Portfolio content available.
Vitamin D Status and Health Implications publication trend
The graph below shows the total number of articles in vitamin d status and health implications across all publications each year (not limited to Nature Index journals).
Technical terms
Serum 25-hydroxyvitamin D (25(OH)D): The primary circulating form of vitamin D used to assess nutritional status and guide clinical decisions.
Mendelian randomisation: A genetic epidemiology method using inherited variants as proxies for modifiable exposures to infer causality while minimising confounding.
Systematic review and meta-analysis: A structured approach that identifies, appraises and statistically synthesises results from multiple studies to derive pooled estimates.
Randomised controlled trial (RCT): An experimental study design in which participants are randomly allocated to interventions to evaluate efficacy and safety under controlled conditions.
References
- No evidence of a causal relationship between miscarriage and 25-hydroxyvitamin D: a Mendelian randomization study. Human Reproduction Open (2024).
- Vitamin D status in the United States, 2011–2014. American Journal of Clinical Nutrition (2019).
- Prevalence of vitamin D deficiency in Africa: a systematic review and meta-analysis. The Lancet Global Health (2019).
About these summaries
This Nature Research Intelligence Topic summary is created with the cited references and a large language model. We take care to ground generated text with facts, and have systems in place to gain human feedback on the overall quality of the process in line with our AI principles. We strive to create accurate and useful summaries for people unfamiliar with the research topic and that supports this goal. These pages are a beta release and will be updated as we learn how best to help people gain value from a research topic summary.
Turn complex research questions into confident strategic decisions
When you're under pressure to set direction, justify investment, or understand your competitive position, you need more than raw data — you need trusted insights you can act on.
Benchmark your performance against global peers using robust, methodologically sound analysis.
Combine quantitative metrics with qualitative expert insight to uncover strengths, gaps and emerging opportunities.
Gain tailored, decision-ready recommendations aligned to your strategic priorities.
Talk to us to learn more about our data dashboards and bespoke strategy reports.
Grow research skills, confidence and careers with training built for every stage of the research lifecycle.
Developed with Nature Portfolio journal Editors and internationally renowned experts. Discover three ways to learn:
Self-paced, online courses in convenient bite-sized units, covering key skills across scientific writing, publishing, grant writing, data analysis, and more.
Expert trainer-led workshops with hands-on exercises and real-time feedback across core research skills, delivered via interactive group sessions.
Editor-led workshops combining core principles in writing and publishing, personalised 1:1 feedback from Nature Portfolio Editors and hands-on exercises.
Explore course catalogues and workshop agendas, enquire about the options or request institutional pricing.