Check this out:
Definitive Guide: The Primal Blueprint | Mark's Daily Apple
After riding really hard all year and stalling out on weight loss, I got turned on to the Primal Blueprint. The idea is that doing lots of chronic cardio will stall weight loss. He recommends taking it easier on cardio, doing weights coupled with removing grains and processed sugar from the diet.
I'm doing it now and weight is dropping again, but more importantly, my body composition is improving and I am feeling better now that I'm off the carb up/carb out, high intensity cardio plan.