Study of the L Carnitine Effect on Myocardial Bioelectrical Activity by Microelectrode Arrays and Artificial Intelligence Application Journal of Cardiovascular Translational Research Springer Nature Link Pure Encapsulations Acetyl l Carnitine 500 mg L Carnitine 500mg 60 Capsules Citrulline may offer rapid gut protection by boosting blood flow to the intestinal lining in under an hour. One 10 gram dose before exercise prevented circulation drops and dramatically reduced gut cell injury