Comparison of short term and long term effects of peroral L carnitine intake: clinical implications of elevated TMAO levels in cardiovascular complications Acetyl L Carnitine is more thought of as a fat burner. It's actually powerful tool for athletes looking to improve endurance, energy, and mental performance. Here's how you can integrate it into your routine for Corebolics L Carnitine Liquid (450 ml, 30 serving) Carnitine: the claims and why it may not work Is L Carnitine safe for athletes at doses up to 6000 mg day? Consensus