Abstract
Vitamin D deficiency is suspected to cause possible complications in COVID-19 patients or they might be provided with a poor prognosis. However, this same vitamin D in excess is capable of causing toxicity. The presentstudy was based on a qualitative/quantitative study carried out from July to September, 2021 .Patients who tested positive for COVID-19 and who sought medical appointment in a private general practice in the city of Caçador,state of Santa Catarina (SC), were selected. The sample consisted of 54 patients who sought ambulatory care and who had a positive diagnosis for COVID-19. Vitamin D levels were found to beeither insufficient or deficient in most patients. However, the plasma concentration of vitamin D in these patients cannot be related to the positivity of the disease or hospitalization. What can be safely concluded is that vitamin D has numerous proven benefits, such as maintaining the cells of the immune system and, thus, preventing infectious diseases.
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