Body Fat Percentage
What is Body Fat Percentage?
Percentage of your body made up of fat.
Why it matters
Better indicator of body composition than scale weight or BMI alone.
How it works
Estimated via calipers, bioimpedance, DEXA, or circumference formulas; trends matter more than a single reading.
Examples
- A 180 lb man with 15% body fat has 27 lb fat, 153 lb lean mass.
- Athletes may have 6-13% body fat; essential fat for women is 10-12%.
- During weight loss, body fat decreases while muscle may stay stable.
- Bodybuilders aim for 4-6% for competitions.
- Overweight individuals can have normal body fat if muscular.
Common mistakes
- Relying on scales alone
- Measuring at wrong times (e.g., after eating)
- Using inaccurate methods
- Comparing to charts without context
- Ignoring hydration and glycogen
FAQ
What's healthy body fat?
Men: 10-20%, women: 18-28%; varies by age.
How to measure accurately?
DEXA or hydrostatic weighing; calipers for trends.
Does body fat differ by gender?
Yes, women have higher essential fat.
Can I have low body fat and be unhealthy?
Yes, if muscle mass is low.
How to reduce body fat?
Calorie deficit with strength training.
What's essential fat?
3-5% for men, 8-12% for women; vital for organs.
Do scales measure body fat?
Bioimpedance scales estimate; not as accurate.
How often to measure?
Monthly for trends; weekly if advanced.
Does age affect body fat?
Yes, increases with age due to muscle loss.
Can body fat be too low?
Yes, below essential levels harm health.
What's body recomposition?
Losing fat, gaining muscle simultaneously.
How accurate are calipers?
Good for trends; user error possible.
Does exercise affect body fat?
Yes, strength training preserves muscle.
What's visceral fat?
Deep abdominal fat; higher health risk.