Magnesium is the fourth most abundant mineral in the body and participates in over 300 biochemical reactions.  Magnesium also plays a key role in nerve conduction, muscle contraction, bone and tooth formation, metabolism, energy production, and heart and circulatory health.  However, research has concluded that 68% of Americans donŐt consume the Recommended Daily Intake (RDI) of magnesium. Magnesium Chewable is a great tasting dietary supplement to help you maintain healthy levels of magnesium in your body.