GU's roctane ultra endurance gel is an efficient, high-performing gel designed for ultra-distance and high-intensity training and racing. Roctane ultra endurance energy gel contains more of the ingredients that matter during long or intense activity while still being based on the proven ratio of simple and complex carbohydrates found in GU energy gel. Each packet (1 serving) contains 100 calories of easy to digest simple and complex carbohydrates, electrolytes and amino acids to fuel extreme endeavors. Roctane has increased branch chain amino acids, which serve as a fuel source (when taken with carbohydrates), reduce muscle damage, enhance recovery, and delay fatigue. Ornithine alpha-ketaglutarate (OKG) is included to support recovery by helping block the catabolic effects of various hormones that cause muscle trauma. Roctane should be consumed 15 minutes before activity and then every 45 minutes throughout the duration of activity, with a few sips of fluid along the way.