Carnitine: Genetic Variants Affecting Mitochondrial Energy and Health What Is Carnitine and Why Is It Important? The Amino Company The Science of Carnitine: How It Works and Why It Matters Did you know L carnitine, a vital amino acid, is naturally produced by your body and found in various foods? While acetyl L carnitine (ALCAR) can be a beneficial supplement for some, most people get L Carnitine Force Factor 5 Health Benefits of L Carnitine