L Carnitine is Underrated. New Meta Review Reminds Us Why. Happy Supplement Sunday! Each of the supplements displayed in today's graphic have some scientific evidence supporting a benefit on liver enzyme (and potentially other markers) levels in people living with a fatty L carnitine Could Be Beneficial in Nonalcoholic Fatty Liver Disease Patients by Improving Choline Metabolism and Reducing Liver Biomarkers European Medical Journal When to take L carnitine: Dosage, forms, and side effects Comprehensive review of the expanding roles of the carnitine pool in metabolic physiology: beyond fatty acid oxidation Journal of Translational Medicine Springer Nature Link L carnitine is an amino acid derivative that plays a crucial role in the body's energy production processes. As an injectable supplement, L carnitine has been employed to support various health conditions, including heart