deficiency in the Middle East. In this context, we aimed to determine whether the prevalence
of vitamin D deficiency is related to degree of physical activity and sun exposure among
apparently healthy Saudi children and adolescents, a little studied population. Methods A
total of 331 Saudi children aged 6–17 years (153 boys and 178 girls) were included in this
cross sectional study. Levels of physical activity and sun exposure were determined using a …