Here’s something to aid those muscles for after intense efforts. Roctane Energy Drink contains carbohydrates and electrolytes for replenishment that endurance athletes need to compete. Light tasting and easy to mix formula, each serving contains 240 calories plus caffeine, taurine and beta-alanine to help increase performance, decreasing perceived effort and muscle fatigue. Calories and hydration are key to keep you performing well in a race.