O.R.S Sports Hydration Tablets in Mixed Berry flavour provide clinically proven electrolyte replacement for athletes. Each pack contains 4 tubes of 20 effervescent tablets (80 servings total) designed to optimise hydration before, during and after exercise. Low-calorie, vegan, gluten-free and halal formula with Vitamin D and Magnesium. Simply dissolve one tablet in 500ml of water for a refreshing, berry-flavoured rehydration drink. Perfect for running, cycling, gym workouts and post-exercise recovery.