Dietary allicin reduces transformation of L carnitine to TMAO through impact on gut microbiota ScienceDirect Pathobiological Relationship of Excessive Dietary Intake of Choline L Carnitine: A TMAO Precursor Associated Aggravation in Heart Failure in Sarcopenic Patients Dietary allicin reduces transformation of L carnitine to TMAO through impact on gut microbiota ScienceDirect TMAO and Heart Health: What You Need to Know Characterization of TMAO productivity from carnitine challenge facilitates personalized nutrition and microbiome signatures discovery Microbiome Springer Nature Link