Vitamin D testing and the use of vitamin D supplements have increased substantially in
recent years. Currently, the role of vitamin D supplementation, and the optimal vitamin D …

The purpose of this review is to examine vitamin D in the context of sport nutrition and its
potential role in optimizing athletic performance. Vitamin D receptors (VDR) and vitamin D …

There are numerous risk factors for stress fractures that have been identified in literature.
Among different risk factors, a prolonged lack of vitamin D (25 (OH) D) can lead to stress …

Context There is still controversy over the effect of vitamin D3 supplementation on bone
health. Objective The effects of vitamin D3 supplementation on bone mineral density (BMD) …

Background Vitamin D insufficiency is common in older people and may lead to increased
bone resorption, bone loss, and increased falls and fractures. However, clinical trials …

Vitamin D status and supplementation regulates bone metabolism and may modulate Wnt
signaling. We studied the response of hormonal regulators of bone metabolism, markers of …

Background A critical need exists to better understand the physiological sequel of vitamin D
supplementation in obese individuals and African Americans. The aim was to …

Context Chronic kidney disease (CKD) leads to alterations in fibroblast growth factor 23
(FGF23) and the renal-bone axis. This may be partly driven by altered inflammation and iron …

Vitamin D plays a role in muscle function through genomic and non-genomic processes. The
objective of this RCT was to determine the effect of monthly supplemental vitamin D 3 …

Bone and renal metabolism are regulated by common factors and there is extensive cross-
talk between these organs (the 'renal-bone-axis'). Ageing is associated with physiological …