Branched-chain amino acids: branched chain amino acids (BCAAs) for any sports are the most important and most effective nutritional supplements. Branched chain amino acids as a nitrogen carrier, auxiliary synthetic muscles required for synthesis of other amino acids, simply, it is a simple amino acid synthesis of complex complete muscle tissue. Therefore, the branched-chain amino acids to stimulate the production of insulin, the main role is to allow the peripheral blood sugar insulin absorption by muscle and as an energy source. Insulin production also promote muscle uptake of amino acids. Both the synthesis of branched-chain amino acids, but also anti-catabolic effect, because they can be a significant increase in protein synthesis, promote the release of the hormone, such as growth hormone (GH), IGF-1 (insulin-like growth factor-1) and insulin and helps to maintain a reasonable testosterone / cortisol ratio. Also has a very good resistance to decomposition of the branched-chain amino acids, because they help prevent protein breakdown and muscle loss, which is very important for people who are in the the Preview control diet stage. In the caloric intake is relatively low, it is strongly recommended to use the branched-chain amino acids, protein hydrolysis due to the decline in the rate of protein combined increase in proteolytic, like eat into the protein is digested and absorbed, broken down into a simple , soluble substances, such as peptides and amino acids, otherwise there is the risk of muscle loss.