Pharmacokinetics of L Carnitine : Clinical Pharmacokinetics Carnitine Deficiency MD Searchlight L Carnitine Linus Pauling Institute Oregon State University 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 Vaginal epithelial dysfunction is mediated by the microbiome, metabolome, and mTOR signaling: Cell Reports