Zone Block Prescription Formula uses which variables?

• A. Age and height.
• B. Body fat percentage and caloric intake.
• C. Lean body mass and activity level to compute blocks.
• D. Water intake and sleep.

Answer: (C)

The Zone Block prescription is driven by lean body mass and activity level. Lean body mass represents the metabolically active tissue that dictates protein needs and overall energy requirements, so using it helps set an appropriate number of blocks. Activity level then scales total blocks to match the energy you expend through daily life and workouts, adjusting how many blocks of protein and carbohydrates you should consume. Other factors like age, height, or water intake and sleep don’t determine the block count in this formula, and while body fat affects overall composition, the calculation uses lean body mass directly. So the variables used are lean body mass and activity level.