Higher Dietary Protein Intake Associated with Lower BMI, Percent Body Fat, and Waist Circumference across Diverse Young to Middle Aged Adults in NHANES

Wills, Colin
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[Honolulu] : [University of Hawaii at Manoa], [May 2015]
Obesity is a significant factor affecting health and health care costs especially for Native Hawaiian and Pacific Islander. Recent weight loss studies have shown that increased dietary protein promotes fat loss and preserves fat-free body mass. This study evaluated relationships between dietary protein intake and body mass index (BMI), percent body fat (% BF), and waist circumference (WC) in the general US population. Demographic, anthropometric, and dietary data (n=4753) were obtained from the 1999-2004 National Health and Nutrition Examination Survey (NHANES) database: ages 18-49. JMP Pro 11 was used for correlation and regression statistical analysis and showed mean BMI, % BF and WC were lower with higher dietary protein intake measured as g/kg bodyweight (p<.0001). These results support the concept that lower BMI, % BF, and WC are associated with higher protein consumption. Optimal protein intake for healthy body composition appears to be greater than current recommendations based on nitrogen balance.
M.S. University of Hawaii at Manoa 2015.
Includes bibliographical references.
body composition, ethnicity, gender differences, Native Hawaiian, Pacific Islander
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