Can L Carnitine Help Your Heart? Exploring Its Benefits and Risks The Dr Kumar Discovery Didn't another study show carnitine was good for the heart? Acetyl L Carnitine for Heart, Diabetes & Kidney Health Kidney Coach Serum L Carnitine Levels Are Associated With First Stroke in Chinese Adults With Hypertension Stroke 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 What is the role of carnitine (L carnitine) in the management of heart failure?