Association between Knowledge and Vitamin D Serum Level among Vitamin D Consumers in Tehran, Iran
Background: Results of studies in Iran indicated a high prevalence of vitamin D deficiency, making its rational use to be critical. So assessing people’s knowledge about the rational use of vitamin D and its safety is worthwhile to pursue. This study aimed to evaluate the level of consumers’ knowled...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Shiraz University of Medical Sciences
2023-09-01
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| Series: | International Journal of Nutrition Sciences |
| Subjects: | |
| Online Access: | https://ijns.sums.ac.ir/article_49486_e73f98ef0c799b66d3656da648358e66.pdf |
| Summary: | Background: Results of studies in Iran indicated a high prevalence of vitamin D deficiency, making its rational use to be critical. So assessing people’s knowledge about the rational use of vitamin D and its safety is worthwhile to pursue. This study aimed to evaluate the level of consumers’ knowledge about vitamin D and its relationship with vitamin D serum levels in Tehran, Iran.Methods: A cross-sectional survey was designed to assess consumers’ knowledge and its association with demographic characteristics, lifestyle, habits and the serum 25-hydroxy vitamin D3 (25(OH)D) level in 10 community pharmacies in Tehran, Iran.Results: Totally, 384 individuals participated in this study, among whom 345 (89.8%) requested large doses of vitamin D. The average knowledge score was 23.67±7.76 out of 50. The average serum level of vitamin D was 49.01±32.01 ng/mL, showing that 117 (30.5%) subjects were in “insufficient”, 224 (58.1%) were in “sufficient”, and 44 (11.4%) were in “hypervitaminosis” levels. There was a significant inverse association between knowledge and age, weight, body mass index (BMI), educational level, vitamin D serum level, and monthly dose. Also, a significant inverse relationship was detected between knowledge in terms of toxicity and vitamin D level. Further, participants’ knowledge of “hypervitaminosis” was lower than those with “sufficient” level.Conclusion: More than 50% of consumers had a sufficient knowledge on vitamin D level, however the lack of knowledge about vitamin D was evident that could lead to misuse and hypervitaminosis, which were noticed in 11.4% of participants. |
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| ISSN: | 2538-1873 2538-2829 |