Vitamin D deficiency (serum 25-hydroxyvitamin D (25 (OH) D)< 50 nmol/L or 20 ng/mL) is
common in Europe and the Middle East. It occurs in< 20% of the population in Northern …

Background: Vitamin D and calcium deficiencies are common worldwide, causing nutritional
rickets and osteomalacia, which have a major impact on health, growth, and development of …

Vitamin D is an essential nutrient for bone health and may influence the risks of respiratory
illness, adverse pregnancy outcomes, and chronic diseases of adulthood. Because many …

Vitamin D deficiency is a major public health problem worldwide in all age groups, even in
those residing in countries with low latitude, where it was generally assumed that UV …

Pregnant women and newborns are at increased risk of vitamin D deficiency. Our objective
was to create a global summary of maternal and newborn vitamin D status. We completed a …

This review describes the vitamin D status in different regions of the world with the objective
of understanding the scope of hypovitaminosis D and the factors related to its prevalence …

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 …

The role of vitamin D in supporting the growth and maintenance of the skeleton is robust;
with recent research also suggesting a beneficial link between vitamin D and other non …

Aims/hypothesis This study is an analysis of the relationship between ultraviolet B (UVB)
irradiance, the primary source of circulating vitamin D in humans, and age-standardised …

To cite this article: Bozzetto S, Carraro S, Giordano G, Boner A, Baraldi E. Asthma, allergy,
and respiratory infections: the vitamin D hypothesis. Allergy 2012; 67: 10–17. Abstract The …