Rooted Owl Cardio Support Capsules with L Taurine & L Carnitine, 1.8 oz., 60 Ct. Petco Both taurine and L carnitine play roles in muscle function, and their combination could potentially enhance muscle health, recovery and weight management. Dr. Thacker breaks down the differences of taurine and L carnitine in Taurine and L Carnitine: The Ultimate Supplement Duo Amazon.com : Taurine Supplement for Dogs Meets RDA of 500 mg per 25lbs Weight Unlike Most Alternatives, 120ct, Helps Maintain Dog Heart Health, Normal Function of The Cardiac Muscle & Normal Blood Rooted Owl Cardio Support Capsules with L Taurine & L Carnitine, 1.8 oz., 60 Ct. Petco