Fast Five Quiz: Vitamin D Practice Essentials

Romesh Khardori, MD, PhD


February 09, 2022

Vitamin D's role in various conditions is the subject of much interest and ongoing research. Vitamin D is obtained from sun exposure, certain foods, and supplements, though deficiency is common worldwide. According to one study, suboptimal levels are found in approximately 24% of individuals in the United States, 37% in Canada, and 40% in Europe. An estimated 490 million individuals in India alone have low levels. Do you know essential information about vitamin D, including recent studies on its role in COVID-19 and other conditions, as well as current recommendations? Test yourself with this quick quiz.


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