Background: Vitamin D deficiency is a health problem in different countries. Vitamin D
deficiency is an important health problem in both developed and developing countries …

Background: VITAMIN D DEFICIENCY is an unrecognized epidemic and a common health
problem worldwide. This study was conducted to evaluate the vitamin D status in primary …

Background: Vitamin D has an essential role in bone growth and metabolism. Currently, its
role has been investigated in different diseases. It is high prevalence of vitamin D deficiency …

Background The aim of this study was to determine the prevalence of vitamin D deficiency
among preschool children in rural and urban areas of Northern Iran and need for continuing …

Background and Aim: Vitamin D has a basic role in bone development and metabolism.
Regarding high prevalence of vitamin D deficiency in Iran, we aimed to investigate its point …

Introduction: Vitamin D deficiency is considered as one of the most common undiagnosed
medical conditions in the world. Studies from India have reported prevalence of vitamin D …

ObjectivesTo evaluate prevalence of vitamin D deficiency and its associated factors in
southern Iranian children. DesignCross-sectional study. Anthropometric and pubertal …

Vitamin D is important for calcium absorption and skeletal growth. Vitamin D insufficiency
(VDI) is a prevalent health problem in children. A study was performed to determine the …

Background and Objective: To assess vitamin D status of 9-12 years old primary school
children in Tehran during fall and winter 2007-8. Design: A descriptive cross-sectional study …

Introduction: Vitamin D deficiency is recognized as an epidemic among children. The
present study has analyzed serum 25 hydroxyvitamin D [25 (OH) D] levels of children living …