What are branched chain amino acids and are they like regular amino acids?

Let me explain. The essential branched chain Amino Acids include leucine, isoleucine, and valine are of special importance for athletes because they are metabolized in the muscle, rather than in the liver . Theoretically, after digestion once protein is broken down into individual Amino Acids these Amino Acids can either be used to build new proteins or be burned as fuel to produce energy.