Originally Posted by
bbbean
Calories in vs calories out. If you burn off 1000 calories a day cycling and replace them with 1200 calories, you're not going to lose weight. Burn off 1000 calories and replace them with 500, and you're losing weight.
There is no single perfect exercise. The best one (in my experience) is the one you stick with over the long haul. For me, that was(is) cycling.
But you have to eat during endurance rides. Unlike gym workouts of an hour or less, if you don't eat anything pre ride and ride for 5 or 6 hours without eating, you will eventually hit a wall.