Revisiting the Role of Carnitine in Heart Disease Through the Lens of the Gut Microbiota L Carnitine TMAO: how gut microbiota contributes to heart failure Translational Research L Carnitine Supplementation in the Diabetic Heart ABC Cardiol Unleashing the Power of L Carnitine for Your Heart Nature'sfield Online Pharmacy L carnitine is primarily synthesized in the liver from the amino acids lysine and methionine through a series of four enzymatic reactions, with the liver and kidneys converting the precursor butyrobetaine into active