Higher Intake of Fruit, but Not Vegetables or Fiber, at Baseline Is Associated with Lower Risk of Becoming Overweight or Obese in Middle-Aged and Older Women of Normal BMI at Baseline

 

Posted on February 19, 2015 by Stone Hearth News

 

   

  

Higher Intake of Fruit, but Not Vegetables or Fiber, at Baseline Is Associated with Lower Risk of Becoming Overweight or Obese in Middle-Aged and Older Women of Normal BMI at Baseline1,2,3
First published February 18, 2015, doi: 10.3945/​jn.114.199158 J. Nutr. April 1, 2015 jn.114.199158

  

Susanne Rautiainen4,6,7,*,
Lu Wang4,6,
I-Min Lee4,6,8,
JoAnn E Manson4,6,8,
Julie E Buring4,6,8, and
Howard D Sesso4–6,8
+ Author Affiliations
4Divisions of Preventive Medicine and
5Aging, Department of Medicine, Brigham and Women’s Hospital, Boston, MA;
6Harvard Medical School, Boston, MA;
7Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden; and
8Department of Epidemiology, Harvard School of Public Health, Boston, MA
Abstract
Background: Fruit, vegetable, and dietary fiber intake have been associated with lower risk of cardiovascular disease (CVD); however, little is known about their role in obesity prevention.
Objective: Our goal was to investigate whether intake of fruits, vegetables, and dietary fiber is associated with weight change and the risk of becoming overweight and obese.
Methods: We studied 18,146 women aged ≥45 y from the Women’s Health Study free of CVD and cancer with an initial body mass index (BMI) of 18.5 to
Results: During a mean follow-up of 15.9 y, 8125 women became overweight or obese (BMI ≥25 kg/m2). Intakes of total fruits and vegetables, fruits, and dietary fiber were not associated with the longitudinal changes in body weight, whereas higher vegetable intake was associated with greater weight gain (P-trend: 0.02). In multivariable analyses, controlling for total energy intake and physical activity along with other lifestyle, clinical, and dietary factors, women in the highest vs. lowest quintile of fruit intake had an HR of 0.87 (95% CI: 0.80, 0.94; P-trend: 0.01) of becoming overweight or obese. No association was observed for vegetable or dietary fiber intake. The association between fruit intake and risk of becoming overweight or obese was modified by baseline BMI (P-interaction: <0.0001) where the strongest inverse association was observed among women with a BMI
Conclusion: Our results suggest that greater baseline intake of fruit, but not vegetables or fiber, by middle-aged and older women with a normal BMI at baseline is associated with lower risk of becoming overweight or obese.
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