L Carnitina: Beneficios y Contraindicaciones Amazon.com: VV Naturals Suplemento de desintoxicacin y reparacin de limpieza heptica, 700 mg de glutatin reducido, cardo mariano y cido alfa lipoico, sin azcar, sin OMG, antioxidantes, desintoxicacin del hgado y gomitas Effect of dietary fiber on trimethylamine N oxide production after beef consumption and on gut microbiota: MEATMARK a randomized cross over study European Journal of Clinical Nutrition 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.