Why does protein deficiency cause liver disease?

Amino acids synthesi: Protein is necessary for the body to synthesize 13 Amino Acids and to break down polypeptide molecules into the nine essential Amino Acids that the body cannot manufacture on its own. Collectively, these acids constantly work to replenish tissue in the body, so they play an important role in the maintenance of healthy bones, muscles, and organs. The body also uses protein to produce hemoglobin.