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 Mitochondrial control of fuel switching via carnitine biosynthesis Science Potential Adverse Effects of L Carnitine Marnys L Carnitine: A Fat Loss Myth or Supplement Staple? L Carnitine Benefits, Uses, Dosage, Foods, Side Effects Dr. Axe Does Carnitine from Red Meat Cause Heart Disease? Diagnosis Diet