Trimethylamine N Oxide, More Red Meat for the Vascular Scientists Hypertension 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 supplementation of l carnitine ameliorates metabolic syndrome independent of trimethylamine N oxide produced by gut microbes in high fat diet induced obese mice Food & Function (RSC Publishing) Butyrobetaine Is a Proatherogenic Intermediate in Gut Microbial Metabolism of L Carnitine to TMAO ScienceDirect