Trimethylamine N Oxide (TMAO) and cancer risk: Insights into a possible link ScienceDirect Trimethylamine and Trimethylamine N Oxide, a Flavin Containing Monooxygenase 3 (FMO3) Mediated Host Microbiome Metabolic Axis Implicated in Health and Disease Drug Metabolism and Disposition Did You Know? Some people report a fishy smell after supplementing with L carnitine. This happens because certain gut bacteria convert carnitine to trimethylamine, a malodorous compound found in rotting fish. Acetyl L Carnitine: Benefits, Forms, Dosing, and Side Effects Dr Brad Stanfield Frontiers Role of Carnitine in Non alcoholic Fatty Liver Disease and Other Related Diseases: An Update