L Carnitine is a naturally occurring amino acid found mostly in meat and dairy products. It serves several functions in the body, primarily related to the production of cellular energy. L Carnitine L Tartrate ( L Carnitine: Benefits, Side Effects, And Dosage, Per Dietitians L Carnitine: Benefits, Side Effects, And Dosage, Per Dietitians 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 How L Carnitine Helps with Fat Metabolism