Connection between Endometriosis and Vitamin D – True or False?

Endometriosis is a serious health problem characterized by the persistence and growth of vascularized tissue at various ectopic sites such as ovaries, bowel, or bladder. Despite decades of intensive research, we are not making significant progress toward the etiology or treatment of this disease. The question of risk factor is similarly unclear, with one possible factor being diet-particularly the intake of vitamin D. In addition, as endometriosis has some similarities and clear connections to cancer, where vitamin D is heavily studied, this relation started to be a subject of intensive research in this field, too. The overall aim of this study is to review possible links between vitamin D intake and endometriosis.