Full article: Gut microbes with the gbu genes determine TMAO production from L carnitine intake and serve as a biomarker for precision nutrition Revisiting the Role of Carnitine in Heart Disease Through the Lens of the Gut Microbiota Pathobiological Relationship of Excessive Dietary Intake of Choline L Carnitine: A TMAO Precursor Associated Aggravation in Heart Failure in Sarcopenic Patients JCI The contributory role of gut microbiota in cardiovascular disease Differential effects of oral and intravenous L carnitine on serum lipids: is the microbiota the answer? The Role of Microbiome in Cardiovascular Health: Insights for Primary Care Interventions Cureus