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 Risks and benefits of carnitine supplementation in diabetes. Semantic Scholar Butyrobetaine Is a Proatherogenic Intermediate in Gut Microbial Metabolism of L Carnitine to TMAO ScienceDirect Decoding TMAO in the Gut Organ Axis: From Biomarkers and Cell Death Me DDDT Dove Medical Press