Association between red meat consumption and the risk of cardiovascular disease: An important role of L carnitine metabolites Prevention Observatory of the Montreal Heart Institute Dietary lecithin, choline, and L carnitine, which are abundant in red Download Scientific Diagram Optimal DX FYI: Gut Microbes Increase TMAO Full article: Gut microbes with the gbu genes determine TMAO production from L carnitine intake and serve as a biomarker for precision nutrition