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 Benefits for Fat Burning and How to Use ICONFIT Excessive consumption of red meat can change gut microbiota From the Literature Circulation Victorian KANGAROO MEAT & L CARNITINE HEALTH RISK Whilst the Kangaroo Industry continues to promote kangaroo meat as a healthy option, it has long been known that there are major health risks.