Carnitines as Mitochondrial Modulators of Oocyte and Embryo Bioenergetics Role of L carnitine in Cardiovascular Health: Literature Review Cureus Mitochondrial control of fuel switching via carnitine biosynthesis Science Carnitine is an essential cofactor for transport of long chain fatty acids into mitochondria, where oxidation takes place. Carnitine deficiency leads to depressed mitochondrial oxidation of fatty acids, resulting in storage of fat