Acetyl L Carnitine for Erectile Dysfunction: What the Evidence Shows and How to Use It Practically Frontiers Role of Carnitine in Non alcoholic Fatty Liver Disease and Other Related Diseases: An Update l Carnitine and its attributed functions in fish culture and nutritiona review ScienceDirect How Supplements May Influence Male Fertility: A Scientific Look AlabamaAgeline.gov 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.