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.
Research continues to show that enjoying soup before a meal reduces the total caloric load of that meal, which can help banish belly fat, says Julieanna Hever, author of The Vegiterranean Diet. Filling up on high-fiber foods like a low-calorie soup is so satisfying that you end up eating less overall, thereby reducing weight.