It's not surprising that calcium is revered as the preeminent mineral for bone health. It is, after all, the most abundant mineral in the human body with 99 percent of it stored in the bones and teeth. Calcium is also critical to the function of muscles, blood vessels, hormones, enzymes and nerves. But it is only one part of the healthy bone equation. It has been determined that magnesium, along with other complementary nutrients such as Vitamins D3 and K2, zinc and copper to name a few, are just as important as calcium when it comes to protecting and enhancing not only bone health but overall health as well. The human body requires magnesium intake everyday, but sadly most Americans don't get their minimum daily requirement of this vital mineral. A deficiency of magnesium may cause a wide variety of conditions such as stress, low energy, inability to sleep, muscle tension, muscle spasms and cramps, headaches and hormonal imbalances just to name a few. Compounding the problem is the intake of excess calcium. Noted author and researcher Mildred S. Seelig, MD, explains: "Calcium is an important essential nutrient, but it must be guarded and controlled and balanced by adequate magnesium if it is not to cause damage to the cells and the body as a whole." While excess calcium can become a problem (calcifications in soft tissue), excess magnesium is not a concern. Unlike calcium, magnesium does not build up in the body--excess amounts are simply eliminated. The solution then, is to equally balance your calcium and magnesium intake so that your cells, muscles, heart and blood vessels can all work at their optimum level.