Carnitine: Genetic Variants Affecting Mitochondrial Energy and Health L Carnitine Linus Pauling Institute Oregon State University 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