Acetyl L Carnitine 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 Amazon.com: My Spectrum Heroes Children's Multivitamin Supplement Acetyl l carnitine, Choline, Coenzyme Q10, Inositol, MSM, MTHF, NAC for Daily Nutritional Help and Cognitive Health (150 Capsules) : Health & Household ACETYL L CARNITINE 500 mg PDF) Acetyl L Carnitine (ALC) in Attention Deficit Hyperactivity Disorder: A Multi Site, Placebo Controlled Pilot Trial Acetyl L Carnitine 500 mg