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 Diet gut microbiota interactions on cardiovascular disease Computational and Structural Biotechnology Journal Carnitine, Choline, Cancer and Cholesterol: The TMAO Connection YouTube Dietary allicin reduces transformation of L carnitine to TMAO through impact on gut microbiota ScienceDirect