An individualized system and method of mass diagnosis and treatment of obesity that is optionally configurable for a plurality of patients and health providers. Computer and relational data storage systems are used for operating a computer program and a secure web site on an internet. User profiles are assigned for accessing the secure web site using a plurality of computer terminals. Patient data and information are gathered for use in a health risk analysis to determine values for variables in a caloric energy equation. An individualized health provider web page is used to administer a meal plan, an exercise plan and an education plan to influence variables in the caloric energy equation to derive an individualized caloric energy deficit and a starvation response threshold in the patient. Patient compliance information is gathered for use in the health risk analysis and for correlation with the stored data to re-derive the variables.