L carnitine biosynthesis. L carnitine can be partly provided by an Download Scientific Diagram 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 L carnitine containing food. Groups of healthy products containing vitamins and minerals. Set of fruits, vegetables, meats, fish and dairy Stock Vector Image & Art Alamy Systemic regulation of L carnitine in nutritional metabolism in zebrafish, Danio rerio Scientific Reports