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Effects of added fruits and vegetables on dietary intakes and body weight in Scottish adults

Published online by Cambridge University Press:  08 March 2007

Stephen Whybrow ,
Claire L.S. Harrison ,
Claus Mayer  and
R. James Stubbs
Stephen Whybrow
Affiliation:
Rowett Research InstituteGreenburn Road, Bucksburn, Aberdeen AB21 9SBUK
Claire L.S. Harrison
Affiliation:
Rowett Research InstituteGreenburn Road, Bucksburn, Aberdeen AB21 9SBUK
Claus Mayer
Affiliation:
Rowett Research InstituteBiomathematics and Statistics Scotland, Bucksburn, Aberdeen AB21 9SBUK
R. James Stubbs*
Affiliation:
Rowett Research InstituteGreenburn Road, Bucksburn, Aberdeen AB21 9SBUK
*
*Corresponding author:fax +44 224 715349, email [email protected]
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Abstract

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An increased consumption of fruits and vegetables (F&V) has been suggested as a way to limit, or even lower, energy and fat intakes. The present study examined the effects of incorporating F&V supplements into the diets of adults who reported consuming <240g (three portions) of F&V per d on energy and fat intakes, and change in body weight, over 8 weeks using a randomised parallel design. Thirty-four males and twenty-eight females (age 42·6 (sd 11·1) years, BMI 23·7 (sd 2·7) kg/m2) were each provided with supplements of 0, 300 or 600g F&V per d. Food, nutrient and energy intakes were measured before, during and at the end of the supplementation period using 7 d weighed records. Mean daily energy intakes were not different among the three groups before (P=0·151) or during the supplementation periods (P=0·407), although changes in energy intakes over the study period tended to be more positive with increasing amounts of F&V supplements (P=0·078). There was no difference in changes of body weights during the study (P=0·242). Carbohydrate (P<0·001), sugar (P<0·001), fibre (P<0·001) and weight of food consumed (P=0·022) increased in the treatment groups. There were no significant differences, or changes, in fat intakes among the three groups. Consumption of mandatory F&V supplements for 8 weeks produced beneficial changes in diet composition, but did not result in lower reported energy or fat intakes, and did not result in loss of body weight.

Keywords

Fruits and vegetablesDiet compositionEnergy balanceEnergy intake
Type
Research Article
Information
British Journal of Nutrition , Volume 95 , Issue 3 , March 2006 , pp. 496 - 503
Copyright
Copyright © The Nutrition Society 2006

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