How to Use the Activity Level 1-5 System
The activity-level system makes nutrition practical. Level 1 is for sedentary or rebuilding people. Level 2 adds light movement. Level 3 reflects consistent training. Level 4 covers high activity or active labor. Level 5 is athletic or very heavy work.
The goal is to scale food, hydration, protein, carbohydrates, recovery, and stress management to real life rather than forcing every person into the same plan.