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body composition

What does body composition mean?

The proportion of your bodyweight made up of fat versus fat-free (lean) mass; the real measure bodybuilders track rather than scale weight alone.

"The scale barely moved but my body composition improved a lot."

Origin

Fitness/physiology term; core to diet planning.

Frequently asked questions

What does body composition mean?
Body composition is the ratio of fat mass to lean (fat-free) mass on your body, giving a truer picture of fitness than bodyweight on the scale alone.
How do you measure body composition?
Common methods include DEXA scans, bioelectrical impedance scales, skinfold calipers and Bod Pod tests, each varying in accuracy and cost.
Why is body composition better than weight?
Because two people at the same weight can look very different; tracking fat versus muscle shows real progress even when scale weight barely changes.
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Slang definitions: FreeDict original editorial.