Without a doubt the most effective technique is cardio training which burns body fat directly, and shrinks your fat cells.
The second most effective technique is to consume your daily maintenance level of calories, but to split them up into four equal meals.
These four meals you should eat every four hours, and breakfast must be eaten every day as soon as you can after waking up.
The third most effective fat burning technique is to consume the proper nutrient ratios for your body type, and 50-30-20 is the best place to start.
This means that 50% of your daily calories should come from natural carbohydrates, 30% from lean protein and 20% from good dietary fat.
The last most effective technique that I will mention in here is weight training. This is effective because it helps you maintain your muscle, and keeps your metabolism burning more and more calories.
There are so many other techniques for creating a lean, healthy body and burning belly fat.
You will find them all in this site. Once you start using these techniques, you will produce amazing results and create the body of your dreams.
Just take it one step at a time, by starting with one technique and then going to the next, and little by little as you get more and more advanced you can incorporate them all of them into your weight loss program.
Once you start using the basics and fundamentals of proper nutrition and exercise that you will find in this site, you will know exactly what you must do to permanently lose unwanted body, and to maintain your ideal weight for life.