Does Carnitine Cause Body Odor? Lume Deodorant L Theanine Vs L Carnitine: Can We Combine Them? Vinatura Supplements Ultra L carnitine making me reek of rotting fish for 48 hours #lcarnitine #fishy #smell #trauma #fyp Theres a reason why fish smell so bad! As a perfumer, Im a little sensitive to smells So I wondered why fish have such a strong fragrance, and why lemon seems to neutralize it So if youre a 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. L Carnitine Powder (Carnipure)