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 Benefits of L Carnitine for PCOS Landys Chemist Berberine and L Carnitine: Safety, Benefits and Dosage Guide Bolt Pharmacy Benefits of Acetyl L Carnitine Simply Supplements l Carnitine Supplementation in Recovery after Exercise