The Effect of Vitamin D in Male Infertility

Despite numerous research on the role of vitamin D in the field of reproduction, based on 2019 publications, the conclusions remain controversial. There are publications suggesting that vitamin D deficiency in the female is associated with low em-bryo quality. In contrast, there are publications which suggest oocytes derive from individuals with vitamin D deficiency have higher quality. Similarly, research on the effect of vitamin D deficiency on male infertility remains also controversial. These controversies are mainly related to direct and the indirect ef-fect of vitamin D and how vitamins D act in combination with minerals and metabolites such as folic acid and vitamin B. Therefore, the aims of this presentation are to reveal light on these ambiguities in the hope of providing clinical information of significant value for clinicians working in the field of assisted reproduction and to open room for future research.