Trimethylamine N Oxide, More Red Meat for the Vascular Scientists Hypertension Carnitine metabolism in the human gut: characterization of the two component carnitine monooxygenase CntAB from Acinetobacter baumannii Journal of Biological Chemistry What Is Carnitine? TMAO? What's Their Link To Red Meat? Pritikin Characterization of TMAO productivity from carnitine challenge facilitates personalized nutrition and microbiome signatures discovery Microbiome Springer Nature Link