What is a peak expiratory flow rate test? The peak expiratory flow rate (PEFR) test measures how fast a person can exhale. The PEFR test is also called peak flow. This test is commonly performed at home with a handheld device called a peak flow monitor. For the PEFR test to be useful, you must keep continuous records of your flow rate.
Get more fiber in your diet. Soluble fiber (such as that found in apples, oats, and cherries) lowers insulin levels which can speed up the burning of visceral belly fat. 1  Add fiber to your diet slowly. 2  If you are currently getting 10g of fiber a day, don't jump to 35g of fiber the next day.
If you are serious about your desire to lose belly fat, you need to stop indulging in junk food. That includes any type of fast-foods or convenience foods you buy. These foods are high in calories, saturated fats, trans fats, refined carbohydrates, salt and sugar and low on vitamins and minerals. They do not help you lose belly fat, but impede your efforts. It is incredibly difficult to reduce your calorie intake and eat high-calorie foods.