ArticleNutrients2020
Vitamin D Status in Japanese Adults: Relationship of Serum 25-Hydroxyvitamin D with Simultaneously Measured Dietary Vitamin D Intake and Ultraviolet Ray Exposure.
Article in Nutrients, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
33 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Genes polymorphism as risk factor of recurrent urolithiasis: a systematic review and meta-analysis.BMC nephrology · 2023Pooled it
- Effect of vitamin B1 supplementation on bone turnover markers in adults: an exploratory single-arm pilot study.Journal of nutritional science · 2025Trial
- Effect of active vitamin D treatment on development of type 2 diabetes: DPVD randomised controlled trial in Japanese population.BMJ (Clinical research ed.) · 2022Trial
- Incidence, Anatomic Distribution, and Return to Training After Stress Fractures in Okinawan Athletes.Orthopaedic journal of sports medicine · 2026Article
- Impact of Vitamin D on Surgical Outcomes for Lumbar Spinal Canal Stenosis.International journal of spine surgery · 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
- Gaps in Vitamin D Intake and Status in Moroccan Women.Epidemiologia (Basel, Switzerland) · 2025Article
- Associations between adherence to Japanese food guide spinning top and nutrient density, climate impacts, and monetary cost: findings from the Saitama Prefecture Nutrition Survey 2017.European journal of nutrition · 2025Article
- Ten-year trends in dietary vitamin D intake and its food sources among Koreans: based on the 2013-2022 Korea National Health and Nutrition Examination Survey data.Nutrition research and practice · 2025Article
- Inadequate Calcium and Vitamin D Intake Among Japanese Women During the Perinatal Period: A Cross-Sectional Study with Bone Health Assessment.Nutrients · 2025Article
- Causal relationship between multiple types of food intake and myopia: a Mendelian randomization study.International journal of ophthalmology · 2025Article
- The relationship between vitamin D levels and Alzheimer's disease risk: insights from a centenarian study of Chinese women.Frontiers in nutrition · 2025Article
- Nutrient Inadequacy Rates Among Japanese Adolescents Aged 10-14: Cross-Sectional Pooled Analysis From 2018 to 2023 (NICE EVIDENCE Study 5).Journal of nutrition and metabolism · 2025Article
- Development of a predictive scoring system for vitamin D deficiency 'Vitamin D Deficiency Predicting Scoring (ViDDPreS)' based on the vitamin D status in young Japanese women: a nationwide cross-sectional study.Public health nutrition · 2024Article
- Development and Validation of the Meiji Nutritional Profiling System (Meiji NPS) to Address Dietary Needs of Adults and Older Adults in Japan.Nutrients · 2024Article
- Vitamin D-The Iceberg in Endometriosis-Review and Meta-Analysis.Journal of personalized medicine · 2024Review
- Vitamin D Supplementation at a Dose of 10 µg/Day in Institutionalized Children with Severe Motor and Intellectual Disabilities.Nutrients · 2023Article
- Observational
- Calcifediol: a review of its pharmacological characteristics and clinical use in correcting vitamin D deficiency.European journal of nutrition · 2023Review
Corrections and comments
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Authors and funding
8 authors.
Funding
Abstract
Vitamin D insufficiency/deficiency is prevalent worldwide. We investigated the effect of vitamin D intake and ultraviolet ray (UV) exposure on serum vitamin D concentration in Japan. A total of 107 healthy adult participants were recruited from Hokkaido (43°N) and Kumamoto (33°N) prefectures. All participants undertook surveys in both summer and winter. Serum 25-hydroxyvitamin D (25(OH)D
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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.