Cleveland Clinic researchers have discovered a connection between elevated blood levels of TMAO (trimethylamine N oxide)a byproduct of gut bacteria digestion of nutrients found in red meat and other animal productsand a higher L Carnitine Linus Pauling Institute Oregon State University Risks and benefits of carnitine supplementation in diabetes. Semantic Scholar Mechanisms Plant Based Diets Reverse Atherosclerosis Butyrobetaine Is a Proatherogenic Intermediate in Gut Microbial Metabolism of L Carnitine to TMAO ScienceDirect The Role of Lipids and Lipoproteins in Atherosclerosis Endotext NCBI Bookshelf