Life Extension, Creatine & Acetyl L Carnitine, Energy Plus This combo is. L Carnitine helps your body use fat as fuel Creatine fuels strength, power, and performance A stronger, more efficient body! Educational purposes only. Not medical advice. Christine When to take L carnitine: Dosage, forms, and side effects Role of L carnitine in exercise training: Anti inflammatory, antioxidant, and metabolic interactions ScienceDirect L Carnitine and Creatine are both game changers for fitness, but they each shine in different ways! SAVE this as your quick guide! L Carnitine, found in red meat, fish, and chicken, supports fat