New study links L carnitine in red meat to heart disease Harvard Health 6 Healthy Foods High in L Carnitine Essential L Carnitine Optimal Health Systems Association between red meat consumption and the risk of cardiovascular disease: An important role of L carnitine metabolites Prevention Observatory of the Montreal Heart Institute 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