Gut Microbiota and Ischemic Stroke: The Role of Trimethylamine N Oxide Identification of TMAO producer phenotype and hostdietgut dysbiosis by carnitine challenge test in human and germ free mice Gut TMAO: Why It Increases & Factors That May Reduce TMAO levels SelfDecode Labs Frontiers The gut microbial metabolite trimethylamine N oxide and cardiovascular diseases TMAO and Heart Health: What You Need to Know Intestinal microbiota metabolism of l carnitine, a nutrient in red meat, promotes atherosclerosis Nature Medicine