Currently, metabolic syndrome is one of the most all-too-common terms in Japan and it has been pointed out that the number of patients afflicted with lifestyle diseases such as hypertension, diabetes and hyperlipemia is rapidly growing. It takes many days to heal from lifestyle diseases completely, and prevention is the best way to keep us healthy. Furthermore it is well-known that dietary cure is one of effective methods to prevent from lifestyle diseases. This paper describes a designing and implementation of alimentary therapy assist system. The system records user's meal history and provide the user with healthy menu based on medical information, body condition, user's meal history individual taste and market price of cooking materials.