EPC ENDURANCE PRODUCTS COMPANY. EACH DOSE CONTAINS 103mg Phosphorus, 10mg Magnesium, 211mg Chloride, 175mg Sodium, 65mg Potassium, each highly absorbable from a sustained-release tablet. IDEAL FOR ATHLETES and active adults who want to stay fully hydrated. Replace Electrolyte releases electrolytes slowly over a 4 to 6 hour period as your body needs them to absorb the fluids you drink.* EACH DAILY DOSE can help you maintain peak performance during physical activity, assist in quick recovery, help maintain fluid balance, and/or help rehydrate fast, even in hot climates.* INCLUDES FIVE ESSENTIAL ELECTROLYTES and no sugar, colors, flavors, preservatives, or gimmicks. Free of common allergens: No milk, egg, fish, tree nuts, peanuts, wheat, or soy. MANUFACTURED AND PACKAGED IN THE PACIFIC NW: Family owned and operated since 1978 in a GMP compliant and FDA registered facility.