According to the ingredient list and official data of a meal replacement milkshake, a bottle of meal replacement milkshake has 259 calories. According to the rule of three meals a day, that is to say, if you simply drink a "meal replacement" milkshake one day, the calorie intake is 777 calories. However, according to scientific data, a person with a standard weight of 60 kg needs 1500- 1600 calories a day if he is at rest. If the activity is moderate, the calories needed at the end of the day are 1800-2000 calories, which far exceeds the calories provided by the "meal replacement" milkshake.

When the calorie intake of the body is insufficient, the body will use its own energy reserves and even consume its own tissues to meet the energy needs of life activities. The most intuitive result in a short period of time is the consumption of fat, which has the effect of losing weight.

By drinking "meal replacement" milkshake instead of staple food, you can really lose weight in a short time. But this way of losing weight is actually no different from dieting in principle, and it is an unhealthy and unscientific way of losing weight in the long run.