Acetyl L Carnitine Carnitine: Genetic Variants Affecting Mitochondrial Energy and Health What is carnitine? Carnitine is produced in the body from the amino acid lysine and naturally occurs in some foods. It supports energy metabolism and muscle function, which are important factors in When to take L carnitine: Dosage, forms, and side effects Acetyl l Carnitine in the Treatment of Peripheral Neuropathies: A Narrative Review Pain and Therapy Springer Nature Link