Doing tons of endurance cardio gives you massive carb cravings and catabolizes muscle mass, slowing your metabolism. Especially when none of it is max effort. To keep your body fat percentage low and metabolism up you really need to combine endurance cardio with high intensity cardio and strength training. This is why things like Crossfit and HIIT are so popular.
Sorry I just don't agree with this. I run 50 miles a week and mix in some cycling too, and I actively have to make an effort to eat enough to maintain weight. Endurance cardio doesn't trigger hunger or cravings for me unless it's a long (90 mins plus) effort.
