By Bob Condor

Browse the aisles of your local health supplements store and you will likely see calcium and magnesium side-by-side and frequently in the same capsule. But sort of like twins with one sister being a movie star and the other, say, a graduate student in biology, calcium gets all of the pub while magnesium just keeps earning the good grades.

Two 2008 studies suggests that a sufficient dose of magnesium can lower blood pressure (confirming earlier research) and …