Should I Take Acetyl L Carnitine or L Carnitine HealthAid Liquid L Carnitine 3500MG Boost Your Energy Naturally Ripped Up Nutrition What is L Carnitine? L Carnitine is a naturally occurring amino acid derivative that the human body can synthesize itself. It is mainly found in red meat and dairy products. [1] Core Benefits of L Carnitine contents in foods (modified from [70]). Download Scientific Diagram What Is Carnitine and Why Is It Important? The Amino Company