body composition

noun

plural body compositions

: the relative percentage of fat, muscle, and bone in a body

That combination of fat loss and muscle gain is what leads to an improved body composition.

—Amanda Capritto

… with declining estrogen levels, there are changes in body composition, cholesterol metabolism, blood sugar regulation and energy metabolism.

—Tracy Ellen Lippard, quoted in The Merced (California) Sun-Star

… a growing body of evidence suggesting that anemia can exist across a range of body compositions …

—Divyanshu Singh et al.

Two dogs might weigh the same but have very different body compositions—one might be perfectly fit while the other carries excess fat or lacks muscle mass.

—Michigan Mama News

Examples of body composition in a Sentence

Recent Examples on the Web

Hormonal and physiological changes that come with age can affect body composition, bone health and recovery, Torres said, but that doesn’t mean people should shy away from challenging workouts. — Olivia Laborde, AJC.com, 14 Sep. 2026

Word History

First Known Use

1951, in the meaning defined above