L Theanine Vs L Carnitine: Can We Combine Them? Vinatura Supplements Carnitene 1 g 10 ml 10 single dose oral solution L carnitine vials Farmacia Dottor Tili 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. 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. What Is L Carnitine? How Could It Help With Weight Management? Wellness Hub