Cutler Nutrition Liquid L Carnitine Blue Sharks flavor is a bold, refreshing taste that delivers fat burning support and energy metabolism benefits. Zero sugar. Zero calories. Pure flavor and results. Shop now at JayCutler.com L carnitine supplements can cause a fishy odor in the breath, sweat, and urine. This is likely due to the formation of trimethylamine (TMA). TMA is also responsible for the pungent smell of 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 5000 EC Sports Supplements