Food Facts App: A Flutter-Based Offline Nutrition Tracking Application with SQLite Integration

In this paper, we propose the Food Facts App; a cross-platform mobile application using Flutter as the
programming language that empowers users by providing them with complete offline nutritional
information. The app incorporates SQLite for local storage capable of querying a searchable database
of food items with nutrition profiles in terms of calories, macronutrients (protein/carb/fat),
vitamins/minerals and allergens. Some of the main features are: - Real-time food data access by
scanning bar code. - Personal dietary suggestions. - Daily nutrition overview with charts and stats. -
Role-based user interfaces or subscriptions for regular end-users and administrators (eg, dietitians).
The application achieves 95% test coverage, sub-100ms query times, and 60fps UI rendering. This
paper describes the system architecture, design methodology, module structure, testing strategy, and
future enhancement roadmap for the application.