MuscleBlaze L Carnitine: Fat Burn Without Side Effects, Fat burn bina side effects? Haan, possible hai., Most fat burners =, anxiety, heart rate spikes, jitters, poor focus, Thats why I L Carnitine Linus Pauling Institute Oregon State University Acetyl L Carnitine vs L Carnitine: 4 Key Differences Momentous 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