Application of an ImprintandReport Sensor Array for Detection of the Dietary Metabolite Trimethylamine NOxide and Its Precursors in Complex Mixtures Harrison 2022 Angewandte Chemie International Edition Wiley Online Library Study reveals how red meat harms the heart. A species of gut bacteria, more abundant in red meat eaters, is key in turning a dietary nutrient called carnitine into TMAO which promotes blood clotting Marked elevation in plasma trimethylamine N oxide (TMAO) in patients with mitochondrial disorders treated with oral l carnitine ScienceDirect Dietary allicin reduces transformation of L carnitine to TMAO through impact on gut microbiota ScienceDirect JCI l Carnitine in omnivorous diets induces an atherogenic gut microbial pathway in humans L Carnitine intake and high trimethylamine N oxide plasma levels correlate with low aortic lesions in ApoE transgenic mice expressing CETP Atherosclerosis