Stay hydrated during endurance and team sport exercise with Powerbar\'s effervescent Electrolyte tablets. A zero-calorie sports drink best used before and during, the tablets are naturally-flavoured and sugar free, providing five key electrolytes lost in sweat; sodium, calcium, chloride, potassium and magnesium. The magnesium specifically helps to maintain electrolyte balance and also supports your muscles. Available in three great-tasting flavours. Stay hydrated during endurance and team sport exercise with Powerbar\'s effervescent Electrolyte tablets. A zero-calorie sports drink best used before and during, the tablets are naturally-flavoured and sugar free, providing five key electrolytes lost in sweat; sodium, calcium, chloride, potassium and magnesium. The magnesium specifically helps to maintain electrolyte balance and also supports your muscles. Available in three great-tasting flavours. Electrolyte effervescent tablets. Contains sodium, calcium, chloride, potassium and magnesium. Magnesium helps to maintain electrolyte balance. 10 tablets per tube Are you a fitness enthusiast and looking for a delicious electrolyte drink? Then Electrolyte Tabs from PowerBar are ideal for you.