What activity level is commonly used for CrossFit athletes in the Zone block formula?

• A. 0.3
• B. 0.7
• C. 0.1
• D. 1.0

Answer: (B)

The activity level in the Zone block formula is an adjustment that matches your daily intake to how hard you train. For CrossFit athletes, the commonly used multiplier is 0.7. This value reflects the high-intensity, frequent workouts typical of CF training while still leaving room for rest days, so your blocks provide enough protein to protect lean mass and enough carbohydrates to fuel demanding WODs, without overdoing fats.

Using a smaller multiplier would underfuel training days and could undermine performance and recovery, while a larger multiplier could overfuel and affect body composition. So 0.7 is chosen as a balanced, practical standard for most CrossFit athletes.