Get Rid of Fishy L Carnitine Smell: Essential Fixes Tonum L Carnitine: Does it help with weight loss? L Carnitine (NZ) Health & Balance Vitamins What Does Healthy Sperm Smell Like Conceive Plus 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 Liquid L Carnitinees Amino Acids MYPROTEIN