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 Carnitine FormMed HealthCare GmbH Systemic regulation of L carnitine in nutritional metabolism in zebrafish, Danio rerio Scientific Reports The effects of dietary L carnitine supplementation in fish diet containing high corn gluten meal on immunity, lipid metabolism, and metabolomics in juvenile hybrid grouper (Epinephelus fuscoguttatus Epinephelus lanceolatus) Aquaculture l Carnitine and its attributed functions in fish culture and nutritiona review ScienceDirect