L Arginine Side Effects: What to Know Before You Take It 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: Benefits, Uses, and Side Effects Lifespan Research Institute Rapid and Sensitive Determination of L carnitine and Acetyl L carnitine in Liquid Milk Samples with Capillary Zone Electrophoresis Using Indirect UV Detection Request PDF