What Is L Carnitine? How Does It Work? Case study on L Carnitine for Fat Loss . #nbx #nutrabox #lcarnitine #fatloss Cutler Nutrition Liquid L Carnitine Blue Sharks flavor is a bold, refreshing taste that delivers fat burning support and energy metabolism benefits. Zero sugar. Zero calories. Pure flavor and results. Shop now at JayCutler.com 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