Amino acids are essential for liver function. They are used to synthesize proteins, which are involved in every aspect of cellular activity. They can also be used to treat and prevent liver diseases. For example, branched-chain amino acids (BCAAs) have been shown to be beneficial for people with liver cirrhosis. BCAAs can help to improve protein synthesis and reduce muscle wasting.

Other amino acids, such as arginine and glutamine, have also been shown to have beneficial effects on liver function.