It is also important in cell maintenance, growth and repair. Seventy percent of the magnesium in the body is found in the bones. The other 30 percent is found mainly in the soft tissues and blood. More magnesium than calcium is found in the muscle tissues. The brain also has twice as much magnesium as any other body tissues.
Magnesium is also necessary for the metabolism of vitamin C, phosphorus, potassium and sodium.
Some common foods that contain magnesium include vegetables, nuts, beans, legumes, whole grains, Seafoods, dairy products, bitter herbs and fruits like figs, lemons and grapefruit. References Bricklin, Mark. The Complete Book of Minerals . Delacortc Press, 1984. The National Research Council, Recommended Dietary Allowances , 9th ed.