Identification of TMAO producer phenotype and hostdietgut dysbiosis by carnitine challenge test in human and germ free mice Gut Dietary allicin reduces transformation of L carnitine to TMAO through impact on gut microbiota ScienceDirect Oolong Tea Extract and Citrus Peel Polymethoxyflavones Reduce Transformation of l Carnitine to Trimethylamine N Oxide and Decrease Vascular Inflammation in l Carnitine Feeding Mice Journal of Agricultural and Food Chemistry Dietary bioactive ingredients to modulate the gut microbiota derived metabolite TMAO. New opportunities for functional food development Food & Function (RSC Publishing) DOI:10.1039 D0FO01237H Optimal DX FYI: Gut Microbes Increase TMAO