You don't have a clear concept of healthy weight. The beauty of thinness in society has misled many people. Weight is not as light as possible, but within a reasonable and normal range. For example, you 160 and I only weigh 80 kg, which is obviously unhealthy. Your idea is obviously impossible, unless you don't eat or drink, people will collapse immediately. First of all, you should control your diet and don't eat those high-calorie snacks, which are actually junk food. Eating them will not be harmful to people's health. Secondly, you should increase your exercise. You should walk or ride a bike if you are not far from your work place. Don't sit still at work at ordinary times, do more aerobic exercise at night and keep a certain amount of exercise, so you will lose weight unconsciously. Of course, in the early stage, you will obviously enter the bottleneck period after a while. At this time, you have to hold on. It's absolutely no problem to lose 30 pounds of meat to 80 pounds. The key is to hold on. Come on, I wish you success.