evidence card · bodyfat_9_11_percent_optimal_men
9–11% body fat is the optimal body-fat percentage for adult men; deviation reduces testosterone
H2
? insufficient
stakes moderate
1 post scored
·
across 1 account
·
1 sources
Summary
Very low body fat in men (e.g., contest prep) is associated with reduced testosterone and other endocrine disturbance. There is no RCT establishing a single optimal body-fat percentage; healthy ranges (10–20%) are broad.
Five-score assessment
Scores not yet assigned for this card. (Legacy card; will be populated on next refinement.)
Scope
Population
adult men
Intervention
maintaining 9–11% body fat
Outcome
testosterone, health outcomes
Not supported for
- claim of specific optimum for general population