Role of carnitine in disease Nutrition & Metabolism Springer Nature Link Comparison of short term and long term effects of peroral L carnitine intake: clinical implications of elevated TMAO levels in cardiovascular complications Pharmacokinetics of L Carnitine Clinical Pharmacokinetics Springer Nature Link What is L Carnitine, L Carnitine is an amino acid that plays a role in energy production and fat metabolism. Its found in foods like red meat, fish, and dairy, and also available as a supplement.,