Headaches and Magnesium: Mechanisms, Bioavailability, Therapeutic Ecacy and Potential Advantage of Magnesium Pidolate Abstract: Magnesium deficiency may occur for several reasons, such as inadequate intake or increased gastrointestinal or renal loss. A large body of literature suggests a relationship between magnesium deficiency and mild and moderate tension-type headaches and migraines. A number of double-blind randomized...