The fastest way is liposuction, which can flatten your stomach with only one operation, but similarly, the cost of liposuction is also the highest. Sadly, liposuction can only remove the fat from your stomach, but it can't shrink your skin. That is to say, if you are too fat, the fat will be removed, but your meat will remain the same size as when you are not liposuction.
So I don't recommend liposuction.
In addition, there are diet pills. Now there are many slimming products, such as slimming drugs, slimming capsules, slimming enzymes, slimming jelly, and weight loss coffee. These are also things that can lose weight quickly, but the body is soft after losing weight and meat, and many weight-loss products will make you have diarrhea. However, girls who don't like sports and can't control their appetite can of course choose this method.
Finally, exercise. It is recommended that you take diet pills together with exercise, because it is the fastest and most efficient way to reduce your stomach, and the muscles you lose are symmetrical and beautiful, so that you can not only have a flat abdomen, but even have abdominal muscles!
The best way to exercise and lose weight is sit-ups. Sit-ups can exercise your waist, abdomen and stomach to the greatest extent, and are also the best way to consume abdominal muscles. Do 100 sit-ups every day, and at the same time cooperate with dieting or slimming products, and your stomach will soon disappear.