Carnitine plays crucial role in energy production esp for the heart, fueling mitochondria (cell furnaces). Highest food source? Only animal food, especially red meat; lamb and beef are best. (Redder the 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 Carnitine, Carnitine, Carnitine: Can you get enough from food sources? Keto Hope Foundation Levocarnitine, commonly known as L Carnitine, is a naturally occurring compound that the body produces from the amino acids lysine and methionine. It plays a critical role in energy production by transporting fatty Amino Acids for Super Humans, Part IV Purported Ergogenics (2 3): L Carnitine, ALCAR, LCLT, GPLC & Co. L Carnitine in Capsules