Nature's Bounty, L Carnitine Caplets, 500 mg, Heart Health Support Walmart.com Supplements That Can Cause Heart Palpitations: Calcium, Vitamin D, Magnesium, and More L Carnitine doesnt magically burn fat, it helps your body use fat as energy. Combine it with training and consistency, and youll feel the difference @Marybosch shows us how L Carnitine will boost Spring Valley L Carnitine Amino Acid Dietary Supplement Tablets for Heart Health, 500 mg, 30 Count HSA FSA Eligible Walmart.com