(2) L-carnitine - Antidoping Schweiz - Antidoping.ch The effect of caffeine, green tea and tyrosine on thermogenesis and energy intake. L-carnitine ameliorates dyslipidemic and hepatic disorders induced by a high-fat diet via regulating lipid metabolism, self-antioxidant capacity, and inflammatory response Effects of carnitine coingested caffeine on carnitine metabolism and