Vitamin D Deficiency Is A Global Problem

A German review of studies that reported on patterns of vitamin D status at the population level globally found that more than a third of the studies reviewed reported mean serum vitamin D levels that are considered inadequate by world health authorities. They also found that vitamin D values were higher in North America than in Europe or the Middle-East and there were age-related differences for the Asia-Pacific and Middle East regions, but not elsewhere. Vitamin D deficiencies have a potentially serious impact on health, particularly on bone and muscle health.