Royal-D Royal-D Electrolyte Beverage Powder - Electrolyte Powder for Dehydration Relief, Isotonic Electrolyte Drink Mix, Electrolyte Drink Mix. Sodium, Potassium - Grape Flavor (8.8 Oz Box, 4 Count)HYDRATION AND ELECTROLYTE REPLENISHMENT: Royal D Electrolyte Beverage Powder is designed to quickly replenish lost fluids and electrolytes, making it ideal for those who exercise or engage in activities that cause sweating. ESSENTIAL NUTRIENTS: Contains glucose for quick energy, potassium for nervous system and muscle regulation, sodium for fluid balance, vitamin B complex for nervous system health, and vitamin C for immune support and antioxidant