Acetyl L Carnitine 3 Reasons Acetyl L Carnitine Supports Cognitive Health HealthyHey Acetyl L Carnitine BioMed Health Center The Effect of L Carnitine on Critical Illnesses Such as Traumatic Brain Injury (TBI), Acute Kidney Injury (AKI), and Hyperammonemia (HA) Meet L Carnitine a naturally occurring amino acid that plays a key role in helping the body convert fat into usable energy. It works by transporting fatty acids into your cells to