This module covers nutritional obesity, its major dietary and lifestyle drivers, identification through anthropometric and metabolic assessment, and the behavioral factors contributing to weight gain. It explores a case based approach to understanding nutritional obesity and developing individualized nutrition and lifestyle interventions. The module focuses on protein, fiber, essential nutrients, hydration, physical activity, sleep, stress management, and mindful eating as key components of management. It also highlights the role of psychological support and appropriate supplementation in a comprehensive weight-management plan.