If you have recently gained a lot of weight, you need to first start with the underlying cause of this weight gain. If you continue to gain weight, no procedure will keep your stomach flat. Once you have been able to stabilize your weight, you could consider multiple options.The gold standard procedure is liposculpture of the abdomen. No other procedure is as effective to achieve your desired appearance. Non-surgical procedures typically can reduce the quantity of fat. CoolSculpting for example, will reduce the thickness of the fat layer by 20%. If you don't mind the remaining 80% of your fat, you will be happy. Otherwise, you will need to perform multiple Non-surgical procedures. Limited benefits, increased costs, length of treatments over time are barriers to achieving a flatter stomach without liposuction.You will be best served by meeting with a board certified Plastic Surgeon who can review ALL of your treatment options. Be careful about aggressive marketing of these non-invasive procedures as you may not be presented with all of the necessary facts to make a well informed decision.