The key with exercise is to realize you're on a progression. Maybe you start by burning 500 calories in 30 minutes, but eventually you will be able to burn 800-900 calories in 60 minutes. That's a good 600-800 additional calories per day.
You still may have to make some diet changes: sucking down sodas all day long is not a good idea no matter how much exercise you do.
The other thing to realize is that your body will try to adapt to exercising every day. If you are routinely active, your body is going to be less likely to store energy in fat.
You still may have to make some diet changes: sucking down sodas all day long is not a good idea no matter how much exercise you do.
The other thing to realize is that your body will try to adapt to exercising every day. If you are routinely active, your body is going to be less likely to store energy in fat.