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 L Carnitine Linus Pauling Institute Oregon State University L Carnitine Amino Acids Walgreens L Carnitine Tartrate Amino Acid 1,500 mg Benevolent Nourishment Acetyl L Carnitine Powder: Optimize Brain Health and Energy with ALCAR Supplement