I think it works. It is still useful for people to lose weight if they stick to the diet for a long time, because people who eat less oil and salt will not gain fat, but they will burn fat because there is no food in their hungry stomachs, which is also a way to lose weight. However, eating fat-reducing meals alone sometimes doesn't make the effect of losing weight obvious, and exercise is needed. The combination of the two will make the effect even more. But for people who are not too fat, they can also lose weight by eating fat-reducing meals. They are not very fat, but they have perfect requirements for their bodies, so they can make themselves thinner by insisting on eating fat-reducing meals every day. Fat-reduced meals are still popular at school, because many students will make themselves thinner first, so they will let themselves eat fat-reduced meals, and they often eat in the canteen, and they will feel bored with some meals. At this time, when a new product comes out, they will be very curious. If it is delicious, it will be very popular. However, some students eat fat-reducing meals and other things, so it won't be effective, because you don't eat them to lose weight, you just regard them as a kind of meal, and you will eat other foods when you are not full, so you won't achieve the effect of reducing fat. If you only eat fat-reducing meals and pay attention to eating at ordinary times, don't eat those greasy foods and puffed foods, so long-term persistence will still have an effect on reducing fat. But the effect won't be so immediate, just saying that you won't let yourself get fat again. As for serious weight loss, you still need exercise. You need to do a certain amount of exercise every day, so that you can lose weight. And weight loss is a long-term project. You can't lose weight for a while, and it takes a long time to get the effect. So since you want to lose weight, you should plan it well, control your diet, and you need a certain amount of exercise every day, and slowly yourself.