L Carnitine: Does it help with weight loss? 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. Acetyl L carnitine in painful peripheral neuropathy JPR Dove Medical Press Most nerve supplements look impressive on the label. Until you compare the doses to what the clinical trials actually used. As a Fellowship Trained Peripheral Nerve Surgeon with 3,000+ nerve procedures, here is