BCAA again

Branched-chain amino acids, particularly leucine, can direct stimulate protein synthesis. They also increase the secretion of certain hormones anabolic sig.
All amino acids have the same basic element (circled in the group consisting of R or the side chain (circled in yellow). In the case of branched chain amino acids that resembles a skeleton tree has linked carbon atoms and hydrogen molecules (CH 3), known as methyl group . As you can see, valine side chain is composed of three methyl, while the isoleucine and leucine made up of four such groups. Other amino acids may have a similar branched structure, but they have no methyl.
Among the most popular supplements, branched chain amino acids (BCAAs) play a particularly important role for muscle building . But what exactly are they? Leucine, isoleucine and valine are included in that group because of the presence of amino acid side chains attached to the basic carbon skeleton. They are also deemed necessary because we must provide our bodies with nutrient, since we are unable to synthesise their own.
It is worth mentioning that they can be used as a source of energy for working muscles during prolonged exertion. And what exactly is going on in our human body? Well branched chain amino acids are released mainly from skeletal muscle and their carbon skeletons are used as fuel. At the same time the rest of the nitrogen is processed in another amino acid – alanine. It is then carried to the liver where it is transformed into glucose, which returns back to the skeletal muscle and can be used again as fuel. The so called. glucose-alanine cycle is a mechanism used to maintain homeostasis, in other words, equilibrium constant level of glucose in the blood.

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