ArticleNutrients2024
Globally Estimated UVB Exposure Times Required to Maintain Sufficiency in Vitamin D Levels.
Article in Nutrients, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 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
22 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Associations between sunshine and influenza or influenza-like illness, a systematic review and meta-analysis.International journal of biometeorology · 2026Pooled it
- Vitamin D as a Modifiable Risk Factor in Schizophrenia a Systematic Review.Biomolecules · 2025Pooled it
- Vitamin D: Physiology, Pharmacology and Clinical Evidence for Supplementation-A Narrative Review.Basic & clinical pharmacology & toxicology · 2026Review
- Natural Light Exposure as a Potential 7th Pillar of Lifestyle Medicine.American journal of lifestyle medicine · 2026Article
- Article
- Vitamin D and Metabolic Syndrome: Molecular Mechanisms and Clinical Implications: A Narrative Review.International journal of molecular sciences · 2026Review
- Cooperative Suppression of Ovarian Cancer Growth by 1,25-Dihydroxyvitamin DCancer medicine · 2026Article
- Vitamin D in Photosynthetic Organisms and Fungi: Sterol Photochemistry, UV-B Availability, and Biofortification Potential.Current issues in molecular biology · 2026Review
- Article
- Effects of Age, Season, and Pregnancy History on Vitamin D Status in Women Seeking Preconception Care.Medical science monitor : international medical journal of experimental and clinical research · 2026Article
- The Role of Vitamins and Micronutrients in the Prevention of Melanoma: A Review of Current Evidence.International journal of molecular sciences · 2026Review
- Vitamin D status in North American managed black rhinoceros (Conservation physiology · 2026Article
- Intervention methods and influencing factors of vitamin D deficiency in Northeast China: a self-controlled trial and randomized controlled trial study.Frontiers in nutrition · 2026Article
- Vitamin D deficiency among apparently healthy adults in northern China: behavioral correlates and an indoor-lifestyle framework.Frontiers in public health · 2026Article
- Seasonal and Environmental Determinants of Maternal and Neonatal Vitamin D Status: A Cross-Sectional Observational Cohort Study in Urban Greece.Healthcare (Basel, Switzerland) · 2025Article
- Prevalence and determinants of hypovitaminosis D in early pregnancy: a cross-sectional study among first-trimester pregnant women.BMC pregnancy and childbirth · 2025Article
- Review
- Vitamin D and Sarcopenia: Implications for Muscle Health.Biomedicines · 2025Review
- Research progress in the role of ultraviolet in the pathogenesis of rosacea.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2025Review
- Vitamin D and Type 2 Diabetes Mellitus: Molecular Mechanisms and Clinical Implications-A Narrative Review.International journal of molecular sciences · 2025Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors.
Funding
Abstract
A paucity of vitamin D is a common deficiency globally, with implications for many aspects of health besides the well-known impact on musculoskeletal health. The two sources of vitamin D are through oral intake, or through endogenous synthesis in the skin when exposed to ultraviolet radiation in sunlight. Assessing nutritional needs, whether by food, food fortification or supplementation, is aided by an understanding of local potential for cutaneous synthesis of the vitamin, dependent on latitude and climate, personal skin type and local culture. To aid these discussions we provide indicative exposure times for the maintenance of vitamin D status as a function of latitude, month and skin type, for the clear-sky case and all-sky conditions, for an ambulatory person wearing modest skirt/shorts and T-shirt. At latitudes greater than ±40 degrees, lack of available sunlight limits vitamin D synthesis in some months for all, while at the equator exposure times range from 3 to 15 min at noontime, for white and black skin, respectively. Rather than a sun exposure prescription, the data are intended to show where nutritional vitamin D intake is necessary, advisable, or can be mitigated by sun exposure, and allows for such advice to be personalized to account for different sub-groups in a multicultural population.
Indexed as
Identifiers
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.