Pharmacokinetics of L Carnitine Clinical Pharmacokinetics Springer Nature Link Unraveling the Formation Mechanisms of Trimethylamine N Oxide and Its Inhibition by Food Ingredients: Toward Cardioprotective Food Development Journal of Agricultural and Food Chemistry 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 L Carnitine in the Treatment of Psychiatric and Neurological Manifestations: A Systematic Review L Carnitine in Autism Spectrum Disorder Encyclopedia MDPI