Comparison of short term and long term effects of peroral L carnitine intake: clinical implications of elevated TMAO levels in cardiovascular complications Did you know L carnitine, a vital amino acid, is naturally produced by your body and found in various foods? While acetyl L carnitine (ALCAR) can be a beneficial supplement for some, most people get History of L carnitine: Implications for renal disease Journal of Renal Nutrition Acetyl L Carnitine 500 mg L Carnitine Protocol for Life Balance L Carnitine Is it Worth Taking? Ideal Nutrition Acetyl L Carnitine 1000mg