Losing weight with L carnitine supplements. Yes or no? NOW Foods, Liquid L Carnitine 3000mg, 16 Fl oz, Citrus Flavor Walmart.com Supplements don't replace the workbut they can support it L Carnitine helps your body turn fat into usable energy, so you can push harder and recover better. Consistency first. Supplements second. Results L Carnitine Tartrate Powder Pure Product Australia L Carnitine Liquid for Weight Loss Supercharge Your Workouts with Liquid L Carnitine