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 …

Background Although several cross‐sectional studies have investigated serum vitamin D
levels in relation to body mass index (BMI), findings are inconsistent. Objective This …

Purpose This paper visualizes the available data on vitamin D status on a global map,
examines the existing heterogeneities in vitamin D status and identifies research gaps …

Background: In recent years, epidemiologic and laboratory studies have implied that vitamin
D deficiency has a role in the pathogenesis of breast cancer. It has shown that vitamin D can …

Objective: Variability in 25-hydroxyvitamin D (25 (OH) D) change following vitamin D
supplementation exists. Vitamin D metabolite measurement might assist in predicting 25 …

Method: PubMed, Google Scholar, Web of Science, Scopus, Science direct and scientific
information databases were searched for papers related to the prevalence of vitamin D …

Background: Vitamin D deficiency is a common medical condition worldwide. In Iran, it has
been reported that between 30-90% of people have vitamin D deficiency. However, its …

Objectives: Among different micronutrient deficiencies, vitamin D deficiency (VDD) is
nowadays considered pandemic. Therefore, the present study aims to investigate vitamin D …

This study seeks to determine whether higher dietary calcium and vitamin D intakes and
increased physical activity are associated with improved bone mineral density (BMD) in …

Background: According to the literature, vitamin D (Vit D) deficiency is a risk factor for breast
cancer developing with lack of information on its direct prognostic effects in breast cancer …