Abstract: Computer-implemented system for integrated context-based personal diet management preferably uses an internet-based client-server system architecture, in which a system server provides centralized food storage and user configuration services for a multitude of client devices. Through a client device a user can select from a choice of target diets, build a dish of food items, and carry out a context-sensitive calculation. The calculation results in a report that includes a comparative analysis of the dish against the dietary objectives of a target diet, with met and unmet dietary goals highlighted, and with needed corrective dish modifications made on how to improve the dish. Food items are sourced, from a native regional source available to all users, as well as from custom food sources that are available from food vendors such as restaurants, by scanning of unique scan codes displayed by vendor users.