L Carnitine: Benefits, Side Effects, and Dosage Ultimate Sup Crush your workout, not your energy. L Carnitine helps support fat metabolism, endurance, and faster recovery so you can train harder and feel lighter. Tap into our exclusive L Carnitine deals at Supplement Bazaar 1000mg L Carnitine Supplement 200 Capsules Boost Metabolism, Increase Energy & Performance L Carnitine Supplement For Cardiovascular Health & Muscle Recovery Walmart.com GAT L Carnitine 60 Capsules