Branched-chained amino acids are leucine, isoleucine and valine, according to NYU Langone Medical Center. The body uses these amino acids to build protein. Although all foods with protein contain BCAAs, some individuals choose to take BCAA supplements.
Some cancer patients may take BCAAs to improve their appetite, according to the NYU Langone Medical Center. These amino acids may also help repair damage from physical stress and injury. In addition, BCAAs reduce exercise-induced muscle breakdown, notes WebMD.
Red meat, dairy products, whey protein and eggs provide ample amounts of BCAAs, according to the NYU Langone Medical Center. BCAAs also come in supplement form. Branched-chained amino acids are considered safe, but they may interfere with some medications that treat Parkinson’s disease.