ArticleJournal of epidemiology and global health2025
Factors Affecting the Knowledge, Attitude and Practice of Vitamin D Supplement Use among Adults: a Multi-Arab Countries Study.
Article in Journal of epidemiology and global health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.
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Who cites it
3 citing papers in PubMed, 1 synthesis or guideline pooled it.
- The 2024 Endocrine Society Guideline on Vitamin D: Comprehensive Summary and Critical Appraisal.Nutrients · 2026Pooled it
- Knowledge, attitudes, and practices regarding vitamin D among adults in Palestine: a cross-sectional study.Frontiers in public health · 2026Article
- Vitamin D supplement use in Egypt and Jordan and associated factors: A survey-based study.PloS one · 2026Article
Corrections and comments
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Authors and funding
15 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundVitamin D, an essential fat-soluble metabolite, plays a critical role in various physiological functions and human growth and development. This study investigates the factors influencing the knowledge, attitudes, and practices of the population regarding vitamin D supplementation.
methodsA self-administered questionnaire was distributed via social media platforms (Facebook, Instagram, X, WhatsApp, LinkedIn) to collect responses from adult participants aged 18 + in Saudi Arabia, Jordan, Egypt, and Iraq from November 2023 to February 2024. Following Tabachnick and Fidell's guidelines, a minimum sample size of 200 was targeted for ten independent variables (Approval number: 2023-PHA-50).The reliability and internal consistency score via Cronbach's α (= 0.8) for the Likert scale in the practice section and (= 0.7) for the attitude section. Statistical analysis involved frequency, percentages, and simple/multiple-linear regression analysis to assess study predictors.
resultsA total of 1340 responses were obtained from four countries: Saudi Arabia (n = 412, 30.8%), Egypt (n = 400, 29.9%), Jordan (n = 310, 23.1%), and Iraq (n = 217, 16.2%). Median knowledge scores (± IQR) in Egypt, Jordan, and Iraq indicated a moderate level of understanding regarding vitamin D supplementation (11 ± 3, 11 ± 2, and 11 ± 3, respectively), whereas Saudi Arabia exhibited lower levels of knowledge (7 ± 2). Neutral attitudes toward vitamin D were observed across all countries, while Jordan and Iraq showed good median practice scores (17 ± 5, 16 ± 5), compared to moderate levels in Saudi Arabia and Egypt (13 ± 3, 15 ± 5), respectively. Multi-linear regression analysis indicated that in Saudi Arabia, younger respondents exhibited higher knowledge, attitudes, and practice scores, while individuals working in the non-health sector displayed higher attitudes and practice scores (p-value = 0.06, 0.009, < 0.001). Similarly, in Iraq and Jordan, those working in the non-health sector demonstrated higher knowledge scores (p-value < 0.001, < 0.001, respectively). Furthermore, males attained higher attitude scores in samples from Jordan, Egypt, and Iraq (p-value < 0.001, 0.003, < 0.001).
conclusionThis study highlights varying levels of knowledge, attitudes, and practices regarding vitamin D supplementation across different demographic groups and countries. Addressing misconceptions and promoting awareness, particularly among younger individuals and those working outside the health sector, is crucial for optimizing vitamin D supplementation practices and enhancing public health outcomes.
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