Branched-Chain Amino Acids (L-Leucine, L-Isoleucine, L-Valine)

Branched-Chain Amino Acids might be useful in a minority of patients with hepatic encephalopathy. Branched-Chain Amino Acids might help prevent muscle catabolism and promote protein synthesis in some trauma subjects and in some exercises. There isn't evidence that they enhance athletic performance. They also haven't proved helpful in treating amotrophic lateral sclerosis (ALS). In one trial, Branched-Chain Amino Acids reduced the symptoms of tardive dyskinesia. Branched-Chain Amino Acids have also been used with some benefit in some individuals with phenylketonuria.

Nursing mothers and women who are pregnant should avoid Branched-Chain Amino Acid supplementation. Treatment of ALS, hepatic encephalopathy, and trauma, or other diseases with Branched-Chain Amino Acids must only be done under qualified medical supervision. Recent research indicates that some patients with ALS might get worse if treated with Branched-Chain Amino Acids. A recent study indicated increased mortality in ALS patients taking large doses of Branched-Chain Amino Acids. This website is intended to educate and inform, and should not replace discussions with your doctor.