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 Frontiers L carnitine prevents lenvatinib induced muscle toxicity without impairment of the anti angiogenic efficacy L Carnitine Linus Pauling Institute Oregon State University Synergistic Effects of L Carnitine and Arabic Gum on Oxidative Stress and Adipokines in Hyperlipidaemic Rats Babcock University Medical Journal