NOW Sports L Carnitine Liquid Informed Sport Certified Citrus 1000 mg 32 fl oz Vitacost L Carnitine: Benefits, Uses, Side Effects, and More 6 Healthy Foods High in L Carnitine 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 NOW Foods L Carnitine 250mg 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