Pathobiological Relationship of Excessive Dietary Intake of Choline L Carnitine: A TMAO Precursor Associated Aggravation in Heart Failure in Sarcopenic Patients Simultaneous quantification of trimethylamine oxide and its precursors from gut microbial metabolic pathway Trimethylamine N oxide, choline and its metabolites are associated with the risk of non alcoholic fatty liver disease British Journal of Nutrition Cambridge Core Differential effects of oral and intravenous L carnitine on serum lipids: is the microbiota the answer? Carnitine, Choline, Cancer and Cholesterol: The TMAO Connection YouTube Full article: Gut microbes with the gbu genes determine TMAO production from L carnitine intake and serve as a biomarker for precision nutrition