Smoking status: effects on the dietary intake, physical activity, and body fat of adult men

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Abstract
This investigation evaluated the relationship between smoking status and body fatness, dietary intake, and physical activity in adults. Subjects were 210 males who were either regular cigarette smokers (n = 35) or nonsmokers (n = 175). Estimated body fat and waist-to-hip (girth) measurements were carefully obtained. Additionally, a sensitive assessment of long-term dietary intake and a multifactorial approach to the assessment of physical activity were made. Results indicated that smokers had lower estimated body fat as calculated by multiple skinfold thickness assessments. In contrast, smokers reported the same total energy intakes as nonsmokers and their levels of physical activity were significantly lower than those of nonsmokers. The differences in intake and expenditure in smokers and the role of metabolism as a possible determinant of the body fat differences in smokers vs nonsmokers are discussed.