Does L carnitine cause fishy body odor? Surprising Truth and Solutions Tonum Does Carnitine Cause Body Odor? Lume Deodorant Probiotics for Body Odor: The Science Behind the Gut Skin Connection BioPhysics Essentials 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 Get Rid of Fishy L Carnitine Smell: Essential Fixes Tonum