It is a dietary supplement that provides large amounts of magnesium. Magnesium is a mineral with numerous virtues. Magnesium is a mineral that helps to reduce tiredness and fatigue, contributes to electrolyte balance, normal energy metabolism and normal functioning of bones, teeth and muscles. Dietary supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. They should be kept out of the reach of children, and stored in a cool, dry place, protected from direct light.