Overview

Branched-chain amino acids are essential nutrients that the body obtains from proteins found in food, especially meat, dairy products, and legumes. They include leucine, isoleucine, and valine. "Branched-chain" refers to the chemical structure of these amino acids. People use branched-chain amino acids for medicine.

Branched-chain amino acids are used for reduced brain function in people with advanced liver disease (hepatic encephalopathy) and for a movement disorder often caused by antipsychotic drugs (tardive dyskinesia). They are also commonly used to improve athletic performance, prevent fatigue, reduce muscle breakdown, and other conditions, but there isn't enough reliable information to support these other uses.

How does it work ?

Branched-chain amino acids stimulate the building of protein in muscle and possibly reduce muscle breakdown.

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