The Right Way to Take L Carnitine to Boost Your Training L CARNITINE increases muscle mass, reduces fat mass. Bangkok Hospital Headquarter Lipo C Nitina Denova ampolletas de L carnitina Mis Vitaminas L carnitine is effective for both fat loss and athletic performance. However, oral L carnitine has lower bioavailability and can be harmful at high doses, so it should be avoided. , Even cardiologists