Disorders of mitochondrial long chain fatty acid oxidation and the carnitine shuttle Reviews in Endocrine and Metabolic Disorders Springer Nature Link The Brain and Mitochondria Boosting Benefits of Acetyl L Carnitine (ALCAR) by Alex Leaf, M.S. The Energy Blueprint Mitochondrial Disorders Role of carnitine in disease Nutrition & Metabolism Springer Nature Link 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 Acylcarnitine an overview ScienceDirect Topics