Gold Standard Bcaa Train + Sustain 266 g by Optimum Nutrition is a premium formula ideal for those looking to maximize their performance during training. This supplement combines high-quality branched-chain amino acids (BCAA) with electrolytes and plant extracts to provide critical support during the most demanding exercise sessions. It contains 5 grams of BCAA in a scientifically-proven 2:1:1 ratio that promotes protein synthesis and minimizes muscle catabolism. Additionally, this product is enriched with Wellmune, a beta-glucan that strengthens the immune system, and Rhodiola rosea extract to improve response to physical stress. Electrolytes such as magnesium and sodium are essential for maintaining hydration and preventing cramps, allowing the body to function at its maximum potential. Its refreshing flavor transforms the drink into an indispensable ally for endurance athletes, CrossFit practitioners, and bodybuilders who seek to maintain intensity and ensure optimal hydration.