The high 5 zero electrolyte hydration tablets zero is the ukrsquos leading electrolyte sports drink tab it produces a clean tasting and highly refreshing drink with zero calories the tabs contain light natural flavours with no artificial colours or preservatives high 5 zero electrolyte hydration tablets features great for before and during exercise 1 tube 20 tablets makes upto 15 litres 1 2 tablets makes a 750ml serving suitable for vegetarians and vegans light amp