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Knowledge, Attitudes and Perceptions towards Vitamin D in a UK Adult Population: A Cross-Sectional Study

Dietetics, Nutrition and Biological Health Sciences, Queen Margaret University, Edinburgh EH21 6UU, UK
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2018, 15(11), 2387;
Received: 7 September 2018 / Revised: 23 October 2018 / Accepted: 24 October 2018 / Published: 27 October 2018
(This article belongs to the Special Issue Vitamin D and Public Health)
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The prevalence of vitamin D deficiency in the United Kingdom is high, despite updated Scientific Advisory Committee on Nutrition (SACN) guidelines. Therefore, our aims were to identify population knowledge, attitudes and perceptions of vitamin D supplementation and factors contributing to supplement use in a UK adult population. A cross-sectional study was performed between April–June 2018 using a newly designed piloted questionnaire. Scores for knowledge were calculated as a percentage (Boland et al. 2015). Logistic regression analysis was used to predict supplement use. 209 participants (82% female), mean (±SD) age 34.9 (±12.3) completed the questionnaire. The mean (±SD) vitamin D knowledge score was 56.6% (±19.9%); only 48% were concerned about their vitamin D concentration and 57% did not take vitamin D. Most participants (86%) wished to learn more about vitamin D. Knowledge score (OR 2.5; p = 0.01; 95% CI 1.2–5.3), concern (OR 2.1; p = 0.03; 95% CI 1.0–4.2) and location (OR 0.3; p = 0.006; 95% CI 0.1–0.7) predicted supplemented use. Individuals living in England had 2.9 (95% CI 1.4–6.3) lower odds of taking vitamin D than those living in Scotland. As a result of these findings, this study suggests that vitamin D supplementation and fortification, alongside education strategies, may be an effective method for improving UK vitamin D health; however, more research is warranted. View Full-Text
Keywords: vitamin D; knowledge; attitudes; perceptions; fortification; supplementation vitamin D; knowledge; attitudes; perceptions; fortification; supplementation

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O’Connor, C.; Glatt, D.; White, L.; Revuelta Iniesta, R. Knowledge, Attitudes and Perceptions towards Vitamin D in a UK Adult Population: A Cross-Sectional Study. Int. J. Environ. Res. Public Health 2018, 15, 2387.

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