Magnesium Citrate is one of the most absorbable forms of Magnesium. It is an essential mineral that contributes to normal muscle and nervous system function. It contributes to the maintenance of healthy bones, teeth, and the reduction of tiredness and fatigue. It also contributes to electrolyte balance, normal energy-yielding metabolism and protein synthesis. It is also important to support a healthy immune system and cardiovascular function, and is highly beneficial for anyone who suffers from muscle cramps or PMS symptoms.