The Association Between Vitamin D Level and Restless Legs Syndrome: A Population-Based Case-Control Study.

Study Objectives: The pathophysiology of restless legs syndrome (RLS) may be related to abnormalities in central dopamine pathways. Vitamin D may play a role in the pathophysiology of RLS by modulating the dopaminergic system. The aim of our study is to examine the possible link between RLS and vitamin D deficiency.