Branched chain amino acids and l carnitine attenuate lipotoxic hepatocellular damage in rat cirrhotic liver ScienceDirect L carnitine promotes liver regeneration after hepatectomy by enhancing lipid metabolism Journal of Translational Medicine Springer Nature Link Early research into L carnitine was often cited as underwhelming, showing negligible changes in muscle carnitine content and fat loss outcomes. However, these findings may have been limited by a short study window Essential L Carnitine Optimal Health Systems