In the double blind, placebo controlled, double crossover trial published in Prostaglandins, Leukotrienes & Essential Fatty Acids, boys diagnosed with ADHD were given acetyl L carnitine at 100 mg per kg of body weight per day, divided L Carnitine is Underrated. New Meta Review Reminds Us Why. Liquid L Carnitine Jolly Green Apple BodyFactory Acetyl L Carnitine vs L Carnitine: 4 Key Differences Momentous Medium chain fatty acid oxidation is independent of l carnitine in liver and kidney but not in heart and skeletal muscle American Journal of Physiology Gastrointestinal and Liver Physiology American Physiological Society