Chronic fatigue syndrome, a condition that afflicts thousands of people, is invariably associated with lower-than-normal concentrations of magnesium in the blood  Further, malabsorption of magnesium from the digestive tract to the blood is also often associated with some types of fatigue
These facts in themselves demonstrate that treatments that raise the concentration of magnesium in the blood would provide an effective cure for the fatigue involved in the syndrome
It neglects to state the exact concentration of magnesium in the blood which is considered the normal concentration.