L Carnitine: Benefits, Risks, and Its Role in Fitness and Weight Loss WellnessPulse Unlocking the Health Benefits of L Carnitine and Potential Side Effects Your Health Magazine L Carnitine: Benefits, Uses, and Side Effects Lifespan Research Institute L Carnitine Benefits, Sources, and Side Effects 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. Does Carnitine Cause Body Odor? Lume Deodorant