Despite what the masses tell you, limit your cardio! Yes that's right ease up a bit on all the steady state cardio. Science tells us after about 20 minutes your body has used up all stored carbs for energy. what happens next is the body then begins to tap into fat stores and your most important fat burning tool, muscle!!!
Muscle is what shapes our bodies and keeps our metabolism moving efficiently if you are constantly using it to fuel your cardio habit you simplyare never going to achieve the body you desire!!! Answer....build lean muscle tissue and keep it by limiting your cardio to short intense 20 minute bursts.
Richard