Let's talk about L carnitine a powerful ingredient found in our puppy food that plays a vital role in your little one's development. , , L carnitine is not just any ordinary component. It's a Amazon.com : XCEL Taurine for Dogs 1000 mg Supplement with L Carnitine, Quarter Scored Tablets (250 mg Split), Up to 240 Servings, Supports Heart, Eye & Energy Health : Pet Supplies Your dog's heart works hard and L Carnitine helps fuel every beat. This natural protein like substance supports healthy heart function by helping carry fatty acids to where the body needs them most. Amazon.com : PET LOL Taurine Supplement for Dogs with L Carnitine and Coenzyme Q10 (CoQ10): Vet Endorsed for Enlarged Heart (DCM), Congestive Heart Failure, Taurine Deficiency: 3 in 1 Dog Supplements 120ct : Pet Rooted Owl Cardio Support Capsules with L Taurine & L Carnitine, 1.8 oz., 60 Ct. Petco