I'd always heard the '10lbs a dress size' before, but it most definitely did not apply to me, as I would now need to be down 5 dress sizes and that is not the case. I started at a size 22 and 50+lbs later I'm wearing some 18s comfortably whilst other 18s are too big, and some 16s comfortably whilst not being able to button other 16s. I think the sizes probably go down more rapidly as we approach goal. I'm certain that I was down nearly 30lbs before suddenly my body shape 'caught up' with the pound loss