Science in Sport GO Hydro plus Caffeine is a new contender in sports hydration.If you body is low in hydration your performance may suffer. For effective quick hydration a drink with Sodium is a great choice. Sodium promotes fluid intake to support rehydration. Science in Sport GO Hydro plus Caffeine contains only 7.5kcal per tablet. Each 4g tab, when mixed with water, makes a 500ml serving with a 30mmol solution of Sodium.Suitable for Vegetarians & Vegans.