Effects of Oral L Carnitine Administration in Narcolepsy Patients: A Randomized, Double Blind, Cross Over and Placebo Controlled Trial PLOS One Acetyl L Carnitine: Benefits and Side Effects Gene Food If you are like a lot of people, you may have never heard of carnitine but this important nutrient is critical for our body's ability to optimally burn fat required for energy. Carnitine: Genetic Variants Affecting Mitochondrial Energy and Health L Carnitine Linus Pauling Institute Oregon State University