Changes in diet and lifestyle and long-term weight gain in women and men
- PMID: 21696306
- PMCID: PMC3151731
- DOI: 10.1056/NEJMoa1014296
Changes in diet and lifestyle and long-term weight gain in women and men
Abstract
Background: Specific dietary and other lifestyle behaviors may affect the success of the straightforward-sounding strategy "eat less and exercise more" for preventing long-term weight gain.
Methods: We performed prospective investigations involving three separate cohorts that included 120,877 U.S. women and men who were free of chronic diseases and not obese at baseline, with follow-up periods from 1986 to 2006, 1991 to 2003, and 1986 to 2006. The relationships between changes in lifestyle factors and weight change were evaluated at 4-year intervals, with multivariable adjustments made for age, baseline body-mass index for each period, and all lifestyle factors simultaneously. Cohort-specific and sex-specific results were similar and were pooled with the use of an inverse-variance-weighted meta-analysis.
Results: Within each 4-year period, participants gained an average of 3.35 lb (5th to 95th percentile, -4.1 to 12.4). On the basis of increased daily servings of individual dietary components, 4-year weight change was most strongly associated with the intake of potato chips (1.69 lb), potatoes (1.28 lb), sugar-sweetened beverages (1.00 lb), unprocessed red meats (0.95 lb), and processed meats (0.93 lb) and was inversely associated with the intake of vegetables (-0.22 lb), whole grains (-0.37 lb), fruits (-0.49 lb), nuts (-0.57 lb), and yogurt (-0.82 lb) (P≤0.005 for each comparison). Aggregate dietary changes were associated with substantial differences in weight change (3.93 lb across quintiles of dietary change). Other lifestyle factors were also independently associated with weight change (P<0.001), including physical activity (-1.76 lb across quintiles); alcohol use (0.41 lb per drink per day), smoking (new quitters, 5.17 lb; former smokers, 0.14 lb), sleep (more weight gain with <6 or >8 hours of sleep), and television watching (0.31 lb per hour per day).
Conclusions: Specific dietary and lifestyle factors are independently associated with long-term weight gain, with a substantial aggregate effect and implications for strategies to prevent obesity. (Funded by the National Institutes of Health and others.).
Conflict of interest statement
No other potential conflict of interest relevant to this article was reported.
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Comment in
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Diet, lifestyle, and long-term weight gain.N Engl J Med. 2011 Sep 15;365(11):1058-9; author reply 1059. doi: 10.1056/NEJMc1108379. N Engl J Med. 2011. PMID: 21916648 No abstract available.
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Diet, lifestyle, and long-term weight gain.N Engl J Med. 2011 Sep 15;365(11):1058; author reply 1059. doi: 10.1056/NEJMc1108379. N Engl J Med. 2011. PMID: 21916649 No abstract available.
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Spezielle kombinierte Lebensstil- und Ernährungsgewohnheiten Wirken sich Langfristig Günstig auf den Gewichtsverlauf aus.Praxis (Bern 1994). 2011 Oct 19;100(21):1307-8. doi: 10.1024/1661-8157/a000704. Praxis (Bern 1994). 2011. PMID: 22012757 German. No abstract available.
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