Okinawa Flat Belly Tonic supplement starts working from day one, but you can’t see its results in a few days. As it follows a natural weight loss plan, it may take some time to see the results. In addition to this, the duration to see results is variable, and every person needs a different time to lose the same amount of weight. It largely depends upon the current body weight, routine, and regularity of usage to predict how much weight a person may lose. You can use Okinawa Flat Belly Tonic for as long as you want; it has no side effects. Most people can see a difference in their weight within four to eight weeks of using it. If you have combined it with a low-calorie diet and exercise, you may experience the results much faster than other users.