The best way to reduce belly fat is to try to reduce bodyfat levels throughout your whole body. The idea of loosing bodyfat from one specific area is called 'spot reduction' and has been proved to not work in many studies that I have looked through over the years. So this then leads to the question of how to loose bodyfat from all over my body (bodyfat from the belly will be lost during this). To loose weight you need to be in a calorie defecit. When in a calorie surplus your body gains weight and when in a calorie defecit your body will loose weight. It really is as simple as that. What is the hard part is working out how many calories your body needs and making sure you eat less that that.
The best way to do this is to find out your Resting Metabolic Rate(you can find an RMR calculatoron google), this is the amount of caloires your body burns if you were at rest all day. Then you add to this any extra calories you burn from exercise during the day.
Now you know how many calories your body burns in a day. So to loose weight you need to eat less than this.
But how many less calories do I need to eat? Well, one pound of bodyfat is equal to 3500 calories. So if you want to loose one pound per week then you need to be in a deficit of 3500 calories in a week, or 500 calories below your daily total. So to loose two pounds per week you need to be in a deficit of 1000 caloires per day.
Now the hard part comes when trying to stick to this new diet, the easiest ways I've found are by tracking what you eat throughout the day and writing down the calories and when you reach your total for the day, you know you can't eat any more that day.
I've just written a hub about using skipping (jump rope) to aid in weight loss, please feel free to view it at