L Carnitine Benefits for Male Erectile Dysfunction If youve only thought of L Carnitine one way, watch this. Theres a part most people never hear about and it changes how you look at it., Full article here Will this make you smell like fish?! Pcos L Carnitine: Uses, Benefits, Dosage, and Side Effects StrengthLog Did You Know? Some people report a fishy smell after supplementing with L carnitine. This happens because certain gut bacteria convert carnitine to trimethylamine, a malodorous compound found in rotting fish.