Amino Acid Supplements
Proteins are made up of amino acids. There are nine essential amino acids, and when these essential amino acids are consumed they can help rebuild muscle proteins as well. In particular, the branched chain amino acids (BCAAs) leucine, valine, and isoleucine are key for protein synthesis and muscle building.
BCAAs are added to some recovery products, and you can buy them as supplements as well. If you purchase them as a supplement, be warned that they are extremely bitter. Food sources high in BCAAs are whey protein and meat, but you can also get substantive amounts of BCAAs from pea and rice proteins.