The only real way to loss fat is to eat healthier and exercise.  No matter what promises diets make, it is all about what is put into your body.  To increase your metabolism, a High Metabolism Diet is required.  This is merely a diet of balanced foods, and daily exercise.  It had been proven many times that starting your day off with a healthy breakfast like eggs, fruit, and granola eaten within 30 minutes after you get up boosts your metabolism.  Having healthy between meal snacks high in protein like a hard boiled egg or mozzarella sticks helps you to curb cravings and eat less at mealtime.  It is really just a matter of what you eat and when you eat that aids in fat loss and a healthier life.