Because exercise can burn calories, many dieters overestimate the calories consumed by 30 minutes of aerobic exercise, and may eventually burn calories while eating and drinking. The American College of Sports Medicine recommends 250 minutes of moderate weight loss exercise every week. You can spend money on a heart rate monitor so that you can record the calories you burn. At the same time, you will know that unless you do more than 60 minutes of intensive exercise, you don't need functional drinks. Ordinary boiled water will do. When doing exercise, skip the fat burning exercise and do intermittent exercise. No matter how much energy your body burns during exercise, it doesn't matter, just pay attention to the total number of calories. Intermittent exercises can promote metabolism and help you get rid of a small belly.