More than 95% of your L Carnitine stores are contained in your muscles, along with trace amounts in your blood, liver, heart and kidneys. L Carnitine is an essential amino acid that helps you LCarnitine Administration to Hemodialysis Patients: Has Its Time Come? Golper 1992 Seminars in Dialysis Wiley Online Library Mitochondrial control of fuel switching via carnitine biosynthesis bioRxiv 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