Mix up Optimum Nutrition's ESSENTIAL AMIN.O. ENERGY anytime you want a boost of enhanced energy and alertness - from early morning workout to afternoon pick-me-up, plus every activity in between. Each serving provides 100 mg of caffeine from natural sources to support energy and focus*(FDA Disclaimer) along with 5 grams of essential BCAA amino acids and electrolytes to support hydration. Use as a pre-workout powder, postworkout recovery drink, or use this energy drink mix anytime you need a morning or afternoon pick-me-up. With zero sugar, it’s a more functional option than sugary energy drinks. This 10.5-ounce package contains 30 servings of electrolyte powder in a delicious Watermelon flavor. ESSENTIAL AMIN.O. ENERGY + ELECTROLYTES Drink Mix offers potassium, sodium and magnesium to help support function and fluid balance. Choose from a variety of natural fruit flavors. Get more out of your workout – and your day – with Amino Energy drinks!