This review describes the vitamin D status in different regions of the world with the objective
of understanding the scope of hypovitaminosis D and the factors related to its prevalence …

We performed a meta-analysis of cross-sectional studies on serum 25 (OH) D status
globally. Serum 25 (OH) D levels on average were 54 nmol/l, were higher in women than …

Vitamin D deficiency is associated with osteoporosis and is thought to increase the risk of
cancer and CVD. Despite these numerous potential health effects, data on vitamin D status …

Hypovitaminosis D is a prevalent disorder in developing countries. Clinical manifestations of
hypovitaminosis D include musculoskeletal disorders, such as nonspecific muscle pain …

Objective: Vitamin D is an important component of calcium and phosphate metabolism,
ensuring, with PTH and FGF23, adequate serum concentrations of these two analytes for …

Vitamin D deficiency is highly prevalent in Saudi Arabia, particularly among young women
and is emerging as public health threat of epidemic proportions. Prevalence of severe …

Vitamin D is an essential nutrient for bone health and may influence the risks of respiratory
illness, adverse pregnancy outcomes, and chronic diseases of adulthood. Because many …

Background: Inadequate serum vitamin D is associated with secondary
hyperparathyroidism, increased bone turnover, and bone loss, which increase fracture risk …

The evidence on the association between vitamin D deficiency and fracture incidence is
contradictory. Therefore, the objective of this study was to examine whether low serum 25 …

It is known that circulating vitamin D predominantly originates from cutaneous synthesis and
therefore should be considered as a hormone rather than a vitamin. Vitamin D deficiency (< …