Magnesium plays an important role in various body functions, including work nervous system, it is involved in the synthesis of a number of neurotransmitters. This mineral necessary for the metabolism of calcium and vitamin D. Sufficient levels of this mineral is essential for its normal development at all stages of life child, starting from the prenatal period. It is also worth noting that magnesium is an important part of more than 500 enzymes, it affects almost every physiological process occurring in the body.