The Role of L Carnitine in Distance Athletes Acetyl L Carnitine vs L Carnitine: 4 Key Differences Momentous 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 Synergistic Effects of L Carnitine and Arabic Gum on Oxidative Stress and Adipokines in Hyperlipidaemic Rats Babcock University Medical Journal