Many exercise scientists consider the maximal capacity to transport and utilize oxygen during exercise, better known as V02max, to be the most valid measurement of cardiovascular fitness. In endurance athletes, L-Carnitine also may improve performance due to a glycogen sparing effect and may delay the onset of fatigue during exercise by reducing the buildup of lactic acid. At the end of the three month study, the control group that was given a placebo lost 1.1 pounds, while the L-Carnitine group lost 11.3 pounds. When considering supplementation, vegetarians should be aware that L-Carnitine manufactured by algroup lonza is not derived from animal sources. Carnitine can exist in two forms, the D and L-isomers.
Isomers are compounds that have the same chemical makeup but are mirror images of each other.
Only L-Carnitine is found in nature and is biologically effective. Information provided by algroup lonza, a manufacturer of several forms of carnitine used in nutritional supplement formulations.