Keep your glycogen stores stoked and your muscles firing happily with GU Roctane Ultra Energy Gel. The proven combination of glucose and fructose is the most easily and rapidly absorbed form of carbohydrate. And, a high electrolyte content is just what your legs crave to stay firing properly, while 35mg of caffeine stokes your central nervous system, increasing the release of free fatty acids into your bloodstream, and further sparing your limited glycogen stores. High amounts of branched-chain amino acids and ornithine speed recovery and reduce muscle damage, histidine buffers against acidic byproduct, and of course the delicious flavors go down easy. Available in several flavors.