L Carnitine: Benefits, Risks, and Its Role in Fitness and Weight Loss WellnessPulse Frontiers A mixture of postbiotics tyndallized probiotics reduces trimethylamine (TMA) in trimethylaminuria models: Evidence from in vitro and in vivo studies Does Carnitine Cause Body Odor? Lume Deodorant 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. Treatments of trimethylaminuria: where we are and where we might be heading ScienceDirect Microbiota and MalodorEtiology and Management