Amino acids are the basic modules of all proteins and, thus, important for your body. In total there are 20 amino acids, all of which are required for the generation of endogenous proteins. The 8 essential amino acids are regarded as particularly important. Essential means, that your body cannot produce these amino acids itself. You have to provide your body with these via food or supplements.
During training your body usually releases larger quantities of amino acids from the muscles and uses these for the energy generation. If all necessary amino acids are absorbed in sufficient quantity, your body must fall back on the store of your muscles less.
Valine, leucine and isoleucine are 3 of the 8 essential amino acids and are called BCAA, which stands for the designation of “Branched Chain Amino Acids”. BCAA are linked to the maintenance and development of the muscle tissue. The advantage of BCAA over other amino acids is that these are free amino acids and, thus, are available to the body much faster.
The non-essential amino acid, which occurs most frequently in the body, is glutamine. This is particularly useful for the cells of the immune system. Furthermore, it is the most important transport form of nitrogen. Glutamine can be quickly transformed to other amino acids. With this, it is involved in the development of endogenous protein. Therefore, many athletes additionally mix glutamine into the protein shake.