Lipoprotein(a) and L carnitine Linear association of 10 year changes in L carnitine levels with the Download Scientific Diagram Risk of coronary heart disease (CHD) according to 10 year changes in Download Scientific Diagram Cardiovascular Disease Linus Pauling Institute Oregon State University 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 Role of L carnitine in Cardiovascular Health: Literature Review Cureus