Body Composition Data for Individuals 8 Years of Age and Older: U.S. Population, 1999–2004

Body Composition Data for Individuals 8 Years of Age and Older: U.S. Population, 1999–2004 (pdf)

Females had higher percentage body fat and fat mass than males. After age 11 years, males had higher lean tissue and fat-free mass than females. Percentage body fat was lowest at ages 16–19 years among males and at ages 8–15 years among females. Among females, non-Hispanic black persons had greater fat mass than either Mexican Americans or non-Hispanic whites.

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http://www.cdc.gov/nchs/data/series/sr_11/sr11_250.pdf