JCI l Carnitine in omnivorous diets induces an atherogenic gut microbial pathway in humans Intestinal microbiota metabolism of l carnitine, a nutrient in red meat, promotes atherosclerosis Nature Medicine Comparison of short term and long term effects of peroral L carnitine intake: clinical implications of elevated TMAO levels in cardiovascular complications Pathobiological Relationship of Excessive Dietary Intake of Choline L Carnitine: A TMAO Precursor Associated Aggravation in Heart Failure in Sarcopenic Patients L Carnitine 500 mg, vcaps Betsy's Health Foods Dietary supplements play a key role in supporting cardiac function in pets with heart disease. Supplements like taurine, omega 3 fatty acids, and L carnitine can help improve heart muscle function, reduce inflammation, and