High 5 zero tablets make a refreshing fruit flavoured electrolite drink that has zero calories and no artificial colours flavours or preservatives buy a box of 8 and save approx 15 per pack price 595 features no artificial colours or preservatives zero calories contains vitamin c to help protect the cells from oxidative stress and contributes to the reduction of tiredness and fatigue the magnesium also contributes to electrolyte balance reduces tiredness and fatigue whils