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.
Pineapple is another belly-fat-fighting food since it contains an enzyme that helps ease digestion and banish bloat, making your belly look and feel flatter. High-fiber foods like pears, berries, veggies, beans, and whole grains have the same effect. Plus, they keep you feeling full longer, just like healthy fats, helping you consume fewer daily calories and reduce your overall body fat. Don't Lose Sight of Your Macros. You don't need to give up carbs and go crazy with a protein-only diet.