Body fat percentage usually indicates the proportion of fat in the body, to reduce body fat percentage should eat more food rich in protein and fiber, because the consumption of body fat needs protein, and fiber can play an inhibitory role on the body fat growth. Supplemental protein should eat more lean meat, fish and soy products, all have rich protein, supplemental fiber to eat more vegetables and fruits, such as apples, cherries, spinach, bitter melon, lettuce, etc., some vegetables and fruits have rich vitamins and pectin, supplemental protein and fiber is conducive to the body’s immune system to improve, need to pay attention to whether the body fat rate is too high or too low, will cause adverse effects on the body. Too high body fat rate needs to be reduced, too high body fat rate will affect the normal function of the body, but also lead to excessive obesity, and obesity can cause cardiovascular disease, diabetes.