Can vitamin D supplementation influence the physical components and performance of athletes with deficiency? A systematic review

High Prevalence of Vitamin D Deficiency among Iranian Population: A Systematic Review and Meta-Analysis

Background: The prevention and correction of vitamin D deficiency requires a precise depiction of the current situation and identification of risk factors in each region. The present study attempted to determine these entities using a systematic review and meta-analysis in Iran.Methods: Articles published online in Persian and English between 2000 and November 1, 2016, were reviewed. This was c...

The effect of vitamin D supplementation on the size of uterine leiomyoma in women with vitamin D deficiency

A systematic review: influence of vitamin D supplementation on serum 25-hydroxyvitamin D concentration.

CONTEXT Few studies in subjects over 50 yr of age have evaluated the influence of variable doses of vitamin D supplementation on serum 25-hydroxyvitamin D levels. OBJECTIVE We performed a meta-analysis of changes in circulating 25-hydroxyvitamin D level associated with vitamin D supplementation in Caucasian subjects over 50 yr old. DATA SOURCES We conducted a systematic search in literature...

Treatment of vitamin D deficiency with high-dose vitamin D supplementation and its effect on hematological indices in pregnancy: A secondary analysis of a randomized clinical trial

Introduction: There are few studies regarding the treatment of vitamin D deficiency with a high dose of vitamin D and the comparison of serum vitamin D levels and hematological indices (Hemoglobin, Hematocrit, Platelet and Ferritin) in the first and second trimesters of pregnancy. The aim of this study was to evaluate the effect of vitamin D supplementation on these hematological indices in pre...

Efficacy of Food Fortification with Vitamin D in Iranian Adults: A Systematic Review and Meta-Analysis

There are a number of reports showing high prevalence of hypovitaminosis D across Iran. The objective of this study was to evaluate whether food fortification with vitamin D has the potential to increase serum 25(OH)D concentrations in Iranian people. MEDLINE, PubMed, EMBASE, and The Cochrane Central Register of Controlled Trials were searched for randomized controlled clinical trials involving...