The principal source of vitamin D in humans is its biosynthesis in the skin through a
chemical reaction dependent on sun exposure. In lesser amounts, the vitamin can be …

The etiology of endemic rickets was discovered a century ago. Vitamin D is the precursor of
25-hydroxyvitamin D and other metabolites, including 1, 25 (OH) 2D, the ligand for the …

Abstract Purpose of Review Evidence from observational studies suggests that obesity is
associated with low vitamin D. As both obesity and hypovitaminosis D present an alarmingly …

Many features of the environment have been found to exert an important influence on
cardiovascular disease (CVD) risk, progression, and severity. Changes in the environment …

Over the past decade, there have been an increasing number of studies on the association
between vitamin D deficiency and anthropometric state. However, we did not identify any …

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 …

Adipose tissue has long been identified as the major site of vitamin D storage. Recent
studies have demonstrated that VDR and vitamin D metabolizing enzymes are expressed in …

Infections of the respiratory tract are more frequent in the winter months and especially in the
northern latitudes than they are in summer [1]. This obviously also applies to the COVID-19 …

Beyond its established role in bone and mineral homeostasis, there is emerging evidence
that vitamin D exerts a range of effects in skeletal muscle. Reports of profound muscle …

Vitamin D status is known to be poor in obese individuals; there is no consensus as to the
reason. Cross‐sectional study of the relation between serum 25‐hydroxyvitamin D (25 (OH) …