Acute L Carnitine Supplementation Does Not Improve CrossFit Performance: A Randomized, Double Blind, Placebo Controlled Crossover Study The effect of L carnitine supplementation on anthropometric and malnutrition status in acute ischemic stroke patients: a triple blinded randomized clinical trial BMC Nutrition Springer Nature Link L Carnitine in Mitochondria Encyclopedia MDPI 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