Intestinal microbiota metabolism of l carnitine, a nutrient in red meat, promotes atherosclerosis Nature Medicine 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 Characterization of TMAO productivity from carnitine challenge facilitates personalized nutrition and microbiome signatures discovery Microbiome Springer Nature Link Decoding TMAO in the Gut Organ Axis: From Biomarkers and Cell Death Me DDDT Dove Medical Press L Carnitine: Benefits, Uses, Side Effects, and More