L Carnitine Carnitine: the claims and why it may not work L Carnitine Uses & Benefits Explained: A Complete Guide The Science of Good Health Early research into L carnitine was often cited as underwhelming, showing negligible changes in muscle carnitine content and fat loss outcomes. However, these findings may have been limited by a short study window I take L Carnitine for weight loss, it says not to take more then 1g per day, but I read online that i should have 2 4g per day to lose weight. What is All You Need To Know About L Carnitine HealthKart