Ultimate's Advanced BCAA contains BCAA (Isoleucine-Leucine-Valine), BCAAs are essential amino acids (protein constituents), as the body is unable to produce them on its own and must be introduced with the diet. BCAAs represent about 30% of muscle mass, so it is useful to insert them in the context of physical effort to optimize energy performance. During physical activity, BCAAs are the first amino acids to be used because, unlike the others, they do not pass through the liver, but are synthesized directly in the muscles. A study informs us how runners who took a dose of 2.6 grams of BCAA had lower values associated with muscle damage in the blood. It is recommended to take before sport, amino acids help to preserve muscles during exertion (avoiding that they are cannibalized by the body) and to stabilize energy. After sport, BCAAs bypass the liver and go directly into the muscles, where they become muscle itself and promote anabolism, i.e. the growth of lean mass and strengthening.