What problem does it solve? Generic diet plans and one-off advice fail because they ignore your current knowledge, habits, and progress. This Skill acts as a stateful personal tutor for scientific, sustainable fat loss, remembering what you have learned, adapting exercises to your level, and honestly flagging what AI cannot verify (actual intake, exercise form, medical conditions). ## Core Features & Use Cases - Structured 13-module curriculum: Progresses from novice (energy balance, TDEE, protein targets) through advanced beginner (meal structure, NEAT, resistance training, sleep) to competent (plateau breaking, habit design, long-term maintenance), with prerequisite ordering and milestones. - Adaptive assessment and spaced repetition: Diagnoses your starting level, generates exercises matched to your mastery, checks your plans against calorie/protein targets, and schedules retrieval practice for key facts via a learner-state file. - Honest safety boundaries: Explicitly defers to doctors, dietitians, and therapists for medical conditions, eating-disorder signals, and exercise form, and counters extreme-diet and all-or-nothing thinking. - Use Case: A user who has repeatedly crash-dieted and rebounded asks to learn scientific fat loss; the tutor places them at novice, walks them through calculating TDEE and a realistic deficit, reviews their 3-day food log to expose underestimated intake, and builds toward an independent maintenance plan. ## Quick Start Tell the AI "教我科学减脂" or "continue learning weight loss" and it will load your learner state, diagnose your level, and start the next module with an exercise it checks for you.