that the extra magnesium failed to boost circulating DPG level or max VO2 (the maximum amount of oxygen that can be removed from circulating blood and used by your working tissues during a specified period), and there was no difference in perceived exertion
of recovery. (Cycling was chosen because it was felt it would be easier to make effort levels consistent for all of the subjects.) Then the subjects cycled to exhaustion at 70 per cent of their VO2max. The men drank equivalent volumes of Mars Original
