This is not good. The most taboo to lose weight is dieting. Successful dieters know that the early effect of dieting is obvious, and the late rebound is terrible. Reducing the size of the stomach is not to eat at once, but to eat less slowly. For example, if you eat 10, you can eat 7 points full in the first week, 6 points in the second week, and half full in the third week. This is gradually decreasing. If you feel hungry after dinner, you can eat some fruit or something. If you want to keep fit, you can try aerobic exercise, usually one. Don't diet! Don't diet! Don't diet!