Everyone's physique is different, and the effect of exercise will be different. Some people are born thin, and they may lose a pound after running for more than ten laps. Others insist on running for more than half a month before losing a pound, which is completely incalculable. For example, if I stick to 3-4 kilometers a day and control my diet, I can lose a pound in about two or three days, but if I have muscle fat, I won't lose weight easily, maybe half a month or more.
In theory, it takes about 3500 calories to lose a catty of fat. 3,500 calories is equivalent to running for 5 hours. According to running for half an hour every day, it takes about 10 days to lose a pound. According to statistics, it takes 3500 calories to lose a catty of fat. This also means that as long as you consume 3500 calories, you will gain a pound. Therefore, it is not easy to lose a pound of fat, not to say that it is good to achieve such an effect.
Exercise can achieve the effect of slimming. In the case of controlling diet, adjusting exercise and properly adjusting exercise intensity, maybe losing a catty will become obvious.