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 …

Vitamin D deficiency (serum 25-hydroxyvitamin D (25 (OH) D)< 50 nmol/L or 20 ng/mL) is
common in Europe and the Middle East. It occurs in< 20% of the population in Northern …

Severe vitamin D deficiency may cause rickets in infants or children and osteomalacia in
adults, though it is now uncommon in developed countries. However, subclinical vitamin D …

Vitamin D testing and treatment is a subject of controversial scientific discussions, and it is
challenging to navigate through the expanding vitamin D literature with heterogeneous and …

Context Vitamin D is classically recognized as a regulator of calcium and phosphorus
metabolism. Recent advances in the measurement of vitamin D metabolites, diagnosis of …

Vitamin D has been linked to human health benefits that extend far beyond its established
actions on calcium homeostasis and bone metabolism. One of the most well studied facets …

Vitamin D has a long-established role in bone health. In the last two decades, there has
been a dramatic resurgence in research interest in vitamin D due to studies that have shown …

Although vitamin D has been reported to have pleiotropic effects including effects on the
immune system and on cancer progression, the principal action of vitamin D is the …

Background Human growth is a complex mechanism that depends on genetic,
environmental, nutritional and hormonal factors. The main hormone involved in growth at …

Hypovitaminosis D is becoming a notable health problem worldwide. A consensus exists
among several different medical societies as to the need for adequate levels of vitamin D for …