There are 23 types of protein amino acids and more than 100 natural non-protein amino acids. Of the proteinogenic amino acids, 9 are essential, 11 non-essential and 3 that are not found in the human body, but are found in plants and other organisms.
We divide twenty basic amino acids into essential and non-essential . Essential are those that our body cannot produce on its own and that need to be ingested through diet. Therefore, we call non-essential those that our body can synthesize.
Branched Chain Amino Acids (BCAAs) are three essential amino acids: leucine, isoleucine and valine. They have aliphatic garnet side chains in their atomic structure. BCAA amino acids make up 35% of the essential amino acids in our muscles.