DIETOS: A recommender system for health profiling and diet management in chronic diseases

Currently, there is a lack of food recommender systems able to provide high quality nutritional advices to both healthy and diet-related chronic diseases users, eventually exploiting typical regional foods. We present DIETOS (DIET Organizer System), a recommender system for the adaptive delivery of nutrition contents to both healthy subjects and patients with diet-related chronic diseases, including Chronic kidney disease (CKD), hypertension and diabetes. DIETOS builds health profiles of users and provides individual nutritional recommendation. Health profiling is based on user answers to dynamic real-time medical questionnaires, while food recommendation is extracted from the DIETOS catalogue. The catalogue contains typical foods from Calabria, a southern Italian region, because of their beneficial properties. For each food, nutrition facts, and indication or counter-indication for several chronic diseases are reported. DIETOS includes some well known methods for user profiling (overlay profiling) and content adaptation (content selection) coming from general purpose adaptive web systems. A preliminary version (for review purpose only) of DIETOS is available at http://www.easyanalysis.it/dietos.