Rapid Review Quiz: Vitamin D

Romesh Khardori, MD


September 06, 2022

Interest in vitamin D supplementation is the subject of much interest. Some experts believe that the hype surrounding vitamin D is almost impervious to evidence. The debate over supplementation does not extend to concerns about vitamin D deficiency, which is well established as a concern. One study found that approximately 24% of individuals in the United States, 37% in Canada, 40% in Europe, and an estimated 490 million people in India have suboptimal vitamin D levels. Are you aware of recent research into vitamin D, including new insights regarding consequences of deficiencies and issues surrounding supplementation? Test your knowledge with this quick quiz.


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