Gold Standard Bcaa Train + Sustain from Optimum Nutrition is a supplement specifically formulated to support athletes during their training, providing an effective combination of branched-chain amino acids (BCAA) and electrolytes. Each serving offers 5 grams of BCAA in the scientifically established ratio of 2:1:1, which helps stimulate protein synthesis and minimize muscle catabolism. These components are key for any athlete looking to improve recovery and endurance during exercise. The formula also includes ingredients like Wellmune, a yeast beta-glucan that boosts the immune system, and Rhodiola rosea extract, which supports the body's ability to manage physical stress. Additionally, electrolytes such as magnesium and sodium are included, essential for maintaining hydration levels and preventing cramps. With a refreshing, light flavor, each serving is recommended to be mixed with cold water for consumption during or immediately after exercise. This product has been tested for banned substances, ensuring it can be used by athletes without concerns. Gold Standard Bcaa Train + Sustain is ideal for anyone looking to maximize performance and stay hydrated during training.