Eating in the morning and evening is a scientific and rigorous weight management model, which not only provides nutritional meal replacement powder, but also provides a personalized scientific and rigorous weight management scheme. The CRD weight management model of breakfast, dinner and benefit takes into account the methods of limiting energy intake, balancing nutrition and controlling weight, which belongs to nutritional intervention in clinic, and there is no drug component in the product. Therefore, meal replacement in the morning and evening has no side effects, will not cause insomnia and endocrine disorders, and will not be addictive.