What Is L Carnitine: Benefits, Dosage, And Side Effects Nikhil Ashtewale IFSI Ultra L Carnitine NutriRestore L Carnitine is an amino acid that supports weight loss as it is a fat burning supplement. L Carnitine Push is a direct and quick IV infusion procedure that can be done on a weekly L Theanine Vs L Carnitine: Can We Combine Them? Vinatura Supplements 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