Abstract
The invention provides a dynamic intelligent body weight management system and method. According to the method, a user device executes an application to receive the personal data and target body weight of a user and transmits the personal data and target body weight to a server; the server calculates estimated time required by the user to reach the target body weight, and the user device periodically processes energy records of the energy intake and consumption of the user on the basis of an energy balance model, and transmits the energy records to the server, so that the server calculates whether the user can reach the target body weight at the estimated time according to the energy records, and therefore, the behaviors of the user can be changed.