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Vitamin D is vital in the regulation of the calcium-phosphate metabolism, has a direct impact on the musculoskeletal system, and also affects numerous other systems. Widespread vitamin D deficiency and its detrimental effect on health have been reported globally. Data concerning vitamin D status in Polish adult population is scarce.

Niedobór witaminy D w przeważająco miejskiej populacji dorosłych z Województwa Pomorskiego w miesiącach zimowych