Usefulness of Carnitine Supplementation for the Complications of Liver Cirrhosis L Carnitine: Benefits, Risks, and Its Role in Fitness and Weight Loss WellnessPulse The adverse effects of long term l carnitine supplementation on liver and kidney function in rats L Liu, D M Zhang, M X Wang, C Y Fan, F Zhou, S J Wang, L D Kong, 2015 L Carnitine Benefits, Uses, Dosage, Foods, Side Effects Dr. Axe 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. L Carnitine doesnt magically burn fat, it helps your body use fat as energy. Combine it with training and consistency, and youll feel the difference @Marybosch shows us how L Carnitine will boost