Investigating the Association between Low Trimethylamine N Oxide Level TACG Dove Medical Press L Carnitine Linus Pauling Institute Oregon State University What are the benefits and side effects of L carnitine (Levocarnitine)? Ever heard of Fish Odor Syndrome? Its a rare condition where the body cant break down trimethylamine a compound found in foods like fish, eggs, and beans. This leads to a strong, fish like smell