Abstract
Objective: To analyze the relationship between vitamin D deficiency and the increase in the diagnosis of depression and to identify whether the increase in the consumption of this vitamin influences its treatment and diagnostic. Methods: The present study is a bibliographic review, which used articles from the Scielo, Google Scholar, PubMed and LILACS databases for its preparation. The descriptors: “depression”, “vitamin D” and “deficiency” were used and works published between the years 2008 to 2020 were selected. Results: The articles found presented many divergences regarding the relationship between vitamin D deficiency and depression, and its supplementation to treat depressive symptoms, as studies with higher doses of supplementation of this vitamin were found that demonstrated positive effects in depression, in contrast to studies with low doses and no effect. Final considerations: Is necessary to carry out more controlled and standardized studies in order to elucidate the correlation between vitamin D and depression.