Magnesium is one of those minerals that is often out of balance in the body. In fact, research has concluded that 68% of Americans don't consume the recommended daily intake (RDA) of magnesium. That's a scary statistic since magnesium is the fourth most abundant mineral in the body and participates in over 300 biochemical reactions! The following are some of the crucial roles of magnesium: fuels digestive enzymes, nerve conduction, muscle contraction, bone and tooth formation, heart and circulatory health, energy production.