The Science of Carnitine: How It Works and Why It Matters L Carnitine for Fat Loss: Why Most Supplements Fail (and What Actually PEScience If you're putting in the work but the scale isn't moving, your body might just need a little help tapping into its fat stores. That's where L Carnitine comes in. It's not a Targeting Skeletal Muscle Dysfunction With L Carnitine for the Treatment of Patients With Chronic Obstructive Pulmonary Disease In Vivo