The original ultra fuel - Long-lasting energy - Lactic acid buffering - Lean muscle mass protection BENEFITS: The world's first protein-fortified sports drink still stands the test of time. Designed to provide steady energy, buffer lactic acid, and prevent lean-muscle cannibalization, this unsweetened and mild-tasting 7:1 carb-to-protein blend has been a fan favorite since 1992. It is especially popular with ectomorphic, hyper-metabolic body types with limited fat stores who struggle to maintain muscle mass during high-volume training. - Kosher Certification