Intestinal microbiota metabolism of l carnitine, a nutrient in red meat, promotes atherosclerosis Nature Medicine Emerging role of trimethylamine N oxide (TMAO) in colorectal cancer Applied Microbiology and Biotechnology Springer Nature Link Cheap protein = expensive gut problems. Here's what to look for on the label before you buy Too Much TMAO is Bad for Your Health TMAO biosynthesis. L carnitine and choline are derived from the diet Download Scientific Diagram