Systemic regulation of L carnitine in nutritional metabolism in zebrafish, Danio rerio Scientific Reports Most people talk about carnitine like it is one supplement. It is not. Acetyl L carnitine and L carnitine L tartrate do different jobs, and picking the wrong one for the wrong goal is where people 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