What does L Carnitine taste like? (L Carnitine) L Carnitine Promix Nutrition Does Carnitine Cause Body Odor? Lume Deodorant 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 The Chemistry of Bad Smell Explained 1 Cadaverine Odor: Smell of decomposing dead bodies Chemical type: Diamine Formula idea: HN(CH)NH Source: Produced when proteins break down during decomposition Why it