Unraveling the Formation Mechanisms of Trimethylamine N Oxide and Its Inhibition by Food Ingredients: Toward Cardioprotective Food Development Journal of Agricultural and Food Chemistry Dietary allicin reduces transformation of L carnitine to TMAO through impact on gut microbiota ScienceDirect What Is Carnitine? TMAO? What's Their Link To Red Meat? Pritikin Intestinal microbiota metabolism of l carnitine, a nutrient in red meat, promotes atherosclerosis Nature Medicine