How to lose belly fat is a little more complex than you have been told by the late-night infomercials with all their fad diet, pills and, potions.
A typical cardio workout doesn't build muscle. If you do a typical cardio workout you will actually lose muscle. Did you ever wonder why most marathon runners are incredibly skinny? Well this is the reason why. They run like a bunny on a treadmill all day and don't build muscle.
If you're the typical person you're looking to lose your belly fat and maybe even a little bit of the muscle to look better. And that won't be bad as you'll have a much leaner and better looking body and improved self image.
You need to increase your metabolism by doing the right kind of exercise. This is why building muscle is an important key to losing fat. Because muscle tissue takes lots of calories to maintain every day, this means the more you build muscle the more calories you'll burn everyday and the higher your metabolism will be whether you exercise or not.
The problem with traditional cardio is that it will cause you to lose muscle mass. Long slow cardio leads to a slowdown in your metabolism and that will defeat your efforts to lose belly fat.