Background Higher total serum 25-hydroxyvitamin D (25 (OH) D) concentrations have been
associated with better cognitive function mainly in cross-sectional studies in adults. It is …

Introduction There is evidence that 25-hydroxyvitamin D levels are lower in overweight and
obese youth. This study examined the relationship between weight status and 25 …

Lagunova Z, Porojnicu AC, Lindberg FA, Aksnes L, Moan J. Vitamin D status in Norwegian
children and adolescents with excess body weight. Objectives: The prevalence of childhood …

Vitamin D deficiency is a common health concern worldwide. We aim to compare the
prevalence of vitamin D deficiency among older adults (65+) in China and the United States …

Background-Vitamin D deficiency is a global health problem, but little is known about the
vitamin D status of Canadians.//Data and methods-The data are from the 2007 to 2009 …

Objectives Low serum 25-hydroxyvitamin D (25OHD) level has been associated with an
increased risk of several chronic diseases. Our aim was to determine lifestyle and clinical …

Vitamin D is an important pro-hormone that can be synthesized by skin exposed to sunlight
(UVB) or ingested with food. However, low outdoor activity, sun protection and low vitamin D …

Background Vitamin D deficiency is widespread in China, particularly among older adults.
Factors associated with suboptimal vitamin D levels are not well defined. The present study …

Abstract The US Institute of Medicine considers that a serum 25-hydroxyvitamin D (25OHD)
concentration> 20 ng/mL corresponds to optimal vitamin D status in the general population …

Ob jec ti ve: Vitamin D deficiency is an important health problem in both developed and
developing countries. Recent reports on the extraskeletal effects of vitamin D have led to …