Did you put all the weight on in 6 months? If not, go with the slow and steady and win the race. Averaging 1 pound a week is a much better way to go if you want to keep the weight off in the long run. And yes, you can loss the weight. However, be good about changing out running shoes often because with the extra weight you actually breakdown the shock absorption faster on the shoes and then set yourself up for more stress fracture injuries.
And I'm one of those working on losing the weight. Not as fast as I personally would love to do, but it's coming off. Since January I'm down 10 pounds. I still have a lot more to go, but .... it too shall happen.
