The benefits of L Carnitine in sports SPONSER SPORT FOOD AG Gua de Dosificacin y Uso de L Carnitina Lquida Understanding the Role of Carnitine in TPN and IDPN Therapy L Carnitine: Benefits, Side Effects, FAQ, Sources, and Dosage 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