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Journal of the American College of Nutrition, Vol. 27, No. 6, 702-710 (2008)
Published by the American College of Nutrition

Dairy Intake and Anthropometric Measures of Body Fat among Children and Adolescents in NHANES

Lynn L. Moore, DSc, MPH, Martha R. Singer, MPH, RD, M. Mustafa Qureshi, MBBS, MPH and M. Loring Bradlee, MS

Section of Preventive Medicine and Epidemiology, Boston University School of Medicine, Boston, Massachusetts

Address reprint requests to: Lynn L. Moore, D.Sc., Section of Preventive Medicine and Epidemiology, Boston University School of Medicine, Harrison Court (Room B04), Boston, MA 02118. E-mail: llmoore{at}bu.edu

Objective: To explore the relation between dairy intake and body fat among children and adolescents.

Materials and Methods: Children (5–11 years) and adolescents (12–16 years) were included who had data on diet, anthropometry measures of body fat, and relevant potential confounders (children: n = 3,864 and 2,231; adolescents: n = 1,884 and 2,636 in NHANES III and NHANES 1999–2002, respectively). Each child's daily dairy intake from 24-hour recalls was classified as low, moderate or high. For girls and boys, respectively: low intake: <1 and <2 servings; moderate intake: 1–<3 and 2–<4 servings; and high intake: ≥3 and ≥4 servings per day.) Analysis of covariance was used to control for potential confounding by age, gender, socio-economic status, race/ethnicity, height and television watching.

Results: Among children, there was no consistent association between dairy intake and anthropometric indices of body fat. Among adolescents, the lowest dairy intake group (< one serving per day for girls and < two per day for boys) had higher estimated levels of body fat than those in the highest dairy group. Compared with the lowest intake level, adolescent girls in NHANES III who consumed 1–<3 servings per day of dairy had about 2.5 mm less subcutaneous body fat (95% CI: –4.70 mm, –0.39 mm) while girls consuming three or more servings had about 5 mm less fat in their sum of two skinfolds. Adolescent boys consuming 4 or more servings of dairy per day had lower anthropometry levels than did those consuming less than two servings.

Conclusion: Among adolescents, suboptimal dairy intake was associated with higher anthropometric measures of body fat.

Key words: dairy intake, anthropometry, body fat, children, adolescents






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